Performance -
The K750 has a nice feel to it, but it is one that takes a little bit of getting used to. For a long time I used an ergonomic keyboard so going back to a flat keyboard was something of a change. That did not stop me from getting the hang of the K750 in only two articles. It really is comfortable to use and easy on the fingers as well. The controls are well placed and intuitive.
The reception on the dongle was something of a concern until I put it into the extender that Logitech included. The solar charging was simple phenomenal; I am still at a loss that you can charge this thing with nothing more than the light coming off of the monitor in front of it. The function keys at the top of the board are handy and while normally I would not find much use for them I did find myself playing with them during this review and the other one that I wrote for this review.
For gaming I found the keys to be spaced well and also responsive to touch I took the K750 through Medal of Honor, Portal 2 and even a few levels of Crysis 2.
The K750 simply had a great feel to it whether typing, gaming or anything else. My only complaint is that it is a bit noisy; I think that Logitech could have made the keys a little more quite than they are, but the noise is not so bad that I would not use it.