Doesn't leak at all. If shaken very hard a toddler can get a few drips out but not enough to worry about. A small spurt of liquid will spurt out when putting the lid on but that doesn't bother us. Snack compartment it roomy enough for snacks but not meals, as it was intended for snacks this isn't an issue at all. Came with a replacement straw which is a fantastic bonus. We find it easy to clean. It is now used more than any other bottle we own, the rest are no good compared to this one.
Two uses for the one product. Came with replacement straw. Does not randomly leak all it's contents all over the place.
Toddler bites straw and very tiny bits come off it. So after a while the straw is too short.

we hardly used this cup as i wasnt impressed with the quality and the straw bit didnt meet my daughters needs. i wouldnt go buying this cup again
the concept of a snack and drink container in one was appealing when i pruchased this cup but i found it didnt meet my expectations. the lid was small so the snacks had to be small and the straw didnt enable fluids once the level got low to be easily drunk by our child. the cup design wasnt friendly for small hands, often our daughter would need to use two hands and a tight grip to hold the cup and drink
the snack container is small and at times i would notice fluid would gather in the lid, thus you need to carefully consider what you out in it

it's a great idea for a snack/drink combo, but the separate compartments are a bit small for the appetites of any kid over 2 and a half, and it's quite fiddly to clean. we gave ours away after trying it for a couple of months
convenient way to store snacks with a drink.
sometimes the lid leaks and fluid somehow gets into the snack compartment. snack compartment also quite small (you can fit cereal and raisins in very small quantities), straw also a bit difficult to replace after cleaning as gets stuck in lid.

V. Good, non spill easy to use, bub's loves it. Have not used the snack part yet but I think that may start soon.
Works well, Little One loves it, it's truly non spill (exept when securing the lid, a "squirt" from the straw occurs as the lid tightens). Easy to Clean. Pattern on outside allows for easy tracking of amount drunk by little one. Easy to use/clean/assemble - NO instructions needed, unlike some of it's close cousins that I've unfortunatley bought and wish I hadn't.
Lid can be hard to open due to smooth lid and smooth container. A grippy bit on the lid or container for this would have been handy.