Most useless wireless keyboard I have ever come across. You have to sit about 1.5 m max away from the receiver for it to work properly that's with the receiver in direct line of sight. Don't even bother using it for a htpc it will drive you nuts

Remember that this is a compact keyboard, I do not have large hands still find it a little bit squeezed to find the right keys, especially when I have to use the up and down arrow keys which are half the size of the rest of the keys. Moreso, pg up and pg dn are again sqeezed into these already half size keys with a Fn key combo which is a pain for me as I do a lot of work in excel. But then, again this was not supposed to be a full function keyboard!

Its best for using with your smart tv where in you won't be doing in a lot of typing.

Great connectivity, easy to use, just plug and play. No issue with distance, have a physical power button to turn off when not using. Standard AA batteries easy to replace.

Very compact and responsive, both keyboard and trackpad. Battery lasts reasonably. The 10m wireless range is quit handy. it features low-profile keys and an on/off switch which is a good power saver and dramatically extend the battery life. It was plug and play on Win 8, no drivers were required

I've owned one and used it every day for three years. It lacks a scroll wheel in the upper right corner. Scrolling by two finger touch requires you to let go of the keyboard with the right hand. A corner wheel would make this one ideal (for me).

MUST sit within a few feet from my computer for wireless to connect.. Might as well have a wire and completely defeats the purpose of a wireless keyboard..

Limited keys as well.

I do not use the mouse pad on this keyboard that often but I really like the click button on the upper leftmost part of the keyboard in which I find very useful along with the logitech M570 trackball mouse that I use. However, I find this keyboard very useful whenever I use it on smart TV because it's very lightweight and compact. This keyboard may not be useful for people with big hands and fingers due to closeness of keys. Overall, I like this keyboard and I would buy again If I would need another one.

I can only get a 2-3m Maximum range. Direct line of site with no obstacles. Extender makes no difference. Disappointing, and useless as a HTPC keyboard due to poor range. Can't use it from my couchas touchpad becomes unresponsive and keystrokes are missed.Less than 3m (9ft) it works fine.

Bought the touch keyboard as a replacement to my son's MS Surface keyboard.
While not as convenient - it also didn't cost an arm and a leg ($40 vs $140+).
In time I've taken this keyboard for myself and I'm using it with a smart media player & my TV.
It has worked flawlessly at a range of 6 meters.
Still using the original batteries supplied (nearly 8 months now) albeit I do switch of the power to this every evening.
I'm recommending people use this when working at home with their laptops - setting the laptops at an appropriate height and using this keyboard as the main input mechanism.
I'd suggest this is another quality Logitech product.

Works well with my Western Digital Live Hub. Also has a compartment for the Unifying Receiver. If you lose the receiver, you can buy spares via Logitech/Ebay/Amazon. Details on modifying receiver are here:- http://support.logitech.com/en_us/software/unifying
I think I paid @ $70 @ 3-4 years ago.

It works flawlessly with my Windows Machine.

The mouse trackpad comes in so handy.

The best, low cost investment one can make on a multimedia device. I use this keyboard as my laptop is connected to the big TV Screen at home!!

I have never had any issues with this product.