We have the whole colour range of these for our kids as they are just so easy for them to use. Easy to clean, no spill and a great range of colours. They're relatively cheap to boot. I prefer these to the other similar products on the market simply for their true no-spill.
Have found that I have to pop the little spouts out, and back in of the lids to make them truly no spill after every wash but that is easy enough.
Everything!

I bought this when my baby was nearly 6 months old and she was able to use it straight away. She can now hold the bottle and drink the water herself. The non-spill feature makes it easy to bring it along when traveling or going out. You don't have to worry so much that the water/liquid will spill if you don't put it upright. Love it!
Easy for my baby to hold & drink, non-spill feature, looks good with it's shape, easy to bring it with you.
A bit difficult to clean the sillicone spout.

After much searching I have found that you can buy the replacement spouts etc on ebay, through american suppliers. You can buy all varieties from www.nubysippycup.com also. Am yet to purchase but intend too, not only to save the environment from purchasing a whole new cup again, but also my hip pocket!
Love it, easy to use, love that the tops of the sport and normal tall bottle fit both.
Replacement teats .... as everyone previous has stated.

We have many nuby products and our baby loves them. This was his first bottle from being breastfed and he took to straight away after many attempts to get him to take a normal bottle and teet.
Baby loves it, easy to hold and use
Silicone teet is difficult to keep clean

I bought these in a 3 pack & my daughter used them with ease straight away. Great no-spill feature. These are her everyday water bottles. Very easy for her to hold one handed. Fit well in the bottle pocket of my nappy bag.
Cheap. Nice & light. Easy for baby/toddler to hold.
Little hard to clean the silicone spout.

I was looking for a cup to help wean my baby from the breast. This one has been great as it is soft and more like nature than the harder spouts on other cups. As she has never had a bottle she has taken to this quite well and the flow isn't too great which means she's not getting too much milk at a time. It's easy for her to hold due to the sculptured design of the bottle and you therefore don't have to worry about handles. Unfortunately the valve has now softened to the extent that it's not spill proof so we will need to replace the whole thing. Not such a problem though as we've had it a couple of months, used it a lot and they're not expensive.
Inexpensive, not too many parts, easy for baby to hold
No spill spout leaked after awhile

Currently using this for my 6mnths+ baby for water only. Had no trouble with him trying to use it for the first time.

Great for babies who don't bite or chew on the spout and at 6mnths+. Coming to 1yr, better to use the straw like sippy cups.
Reasonable price for a sippy cup. Great for babies starting on sipper cups from 4 to 6mnths+.
Shape of the bottle. Not suitable for older babies who has teeth which they will bite or chew on the silicon spout.

A great bottle for little ones - we generally just use it for water, but occasionally use it for milk. THe only down side is that it is a little difficult to clean the bottom of the bottle due to the size and shape. However it is handy that the top comes apart - this is easy to clean.
I like the shape and size of it - really quite easy for a little one to hold and get his fingers around it. I like that it was no spill - also good for little ones to chew on.
Can be difficult to clean - due to shape and size.

The idea is great but in reality it did not work as well. The spout leaked after a couple of days and made a mess. My bub was a chewer though and this may have been the reason. It was readily available and was cheap. We tried this but I would not recommend it as it did not stand up to daily use. It was easy to clean and to dry completely. I found it better as a dolls bottle rather than for a real bub- my child also had fun feelding it to her dolls!
Size was good, provided good grip for little fingers, cheap and inexpensive, different colours available.
I found that this leaked after a few days.

This would be a perfect product if only it was not rendered useless by the inability to replace damaged spouts
the easy grip sipper is perfect for that stage between bottle and cup, it doesnt spill - great for in the car - and is easy to clean. little hands find them easy to hold, even when asleep! They also come in different colours so each child can easily itentify his/her own cup!
the children do tend to chew on the spout, or stick their fingers in, thus widening the hole and making the spout able to leak. Why cant we buy replacement spouts? Or can we? Does anyone know where we can get replacements?

If these came with replacement teats, they would be perfect for that stage between cup and bottle. It's the one downfall in a really fantastic product, sadly.
We used these for our second youngest in between the trasnistion time from bottle to cup with great sucsess! They're very easy for the child to grasp and we found when he dropped them, they didn't spill or leak too badly!
No replacement teats, so if your baby is teething when using one, keep a close eye out! Like many of the mummies here have mentioned, the teats WILL get worn, chewed, poked at!

great for younger children as the spout is soft - easy to clean and affordable. I wish that replacement teats were sold however this is still one of the better sippy cups on the market.
very easy for a young baby to use. great colours and a good price
my son chews through the teats and I have to buy an entirely new cup each time he does this so it works out more expensive

My three year old has a yellow one and my two year old has a blue one, found them to be great drinking cups, price comparison they were the best value ones I could see in the supermarket, from a reputable company.Unfortunately replacement spouts are not available.Found that they do drip now that they have been in use for a few months.Easy to clean and choice of colours makes it easy to define which cup belongs to which child.Value for money
Easy for small hands to grip, doesnt leak when new.Wash it in the dishwasher.Nice colours.
Spout does leak after a while, hard to clean up inside the spout.

I like how its meant to not spill (I think my bad bottle was just a once off). Easy to hold and clean
I use all the Tommee Tippee Sipper cups etc. This one was great for little hands to hold.
It leaks if tiped on its side. I left my son for a few seconds only to come back and the whole contents of the bottle was gone and he was soaking wet and the lid was still firmly on. I contacted Tommee Tippee about it and I sent it back and they replaced it. I haven't used the replacement yet as moved onto the bottles with the straw on top. Other mums still use this one and don't have a problem, so perhaps it was just my dodgy bottle

we switched our bottle fed baby from bottles to these sippers at 7months old. he didnt mind too much, so that was a huge plus from me. to clewan up in the teat, you have to use a knife to get into the little grooves, but that wasnt too bad.
easy for baby to suck from, very easy for baby to hold (large and has indents)
cute colours
cannot buy extra teats/tops, you have to buy the whole sipper again.

My son has been using these bottles since six months old. He has no problems holding or using the bottle. Though when hes teething he bites the teats and breaks them (have noticed they have changed the teats now to stronger ones) and I have never seen them sold seperately. Great bottle.
Easy to hold and drink out of.
Can find replacement teats sold seperatly have to buy a whole new bottle.

I love these cups as the teat is soft for a smaller baby to learn how to drink water and become more familiar with the next stage of drinking. Shape of cup is very easy for little hands to hold onto whilst learning. Easy to clean and fill.
Great first cup for baby to learn how to drink water or milk out of something other than a bottle.
Cannot buy replacement teats so once baby chews a hole in it which inevitablly happens you have to replace the whole cup which gets expensive and isn't exactly good for the environment.

a good sipper type cup that is easy to use and hold for the toddler. the only problem is that little fingers can destroy the plastic sipper by putting their fingers through. Would be great if you could buy replacement parts.
easy for small hands to hold and does not spill easily, great for in the car
it does leak if you or toddler shakes hard

This cup was great. The silicone spout made sucking for liquid very easy for my little man. I never found that it leaked until he chewed a hole in the spout. Unfortunately you cant buy replacement spouts so the whole thing ended up in the bin.
Easy grip, soft spout, easy suck
Not being able to replace spout

The bottle was perfect for the little hands. The silicone spoutt was easy for her to suck on. No more spills. I was very happy with it until I realised that I could not buy replacement spouts. Bought another one but that got chewed within a week.

Do not recommend this to anyone unless your child is not a chewer or you are prepared to buy a new one every other week.
The bottle was perfect for the little hands, the silicone spout was easy for her to suck on, no spill, easy to clean
replacement spout not sold separately