Summary: I've tried lots of wireless setups from many different manufactures, but this Logitech has all others beat. Easy set up, just pull the tape from the batteries that are included, turn it on, plug in the unifying receiver and your good to go. I bought a wireless mouse, also Logitech to simplify connections and was up an running in 10 seconds.
Pros: Keys are best part. Relatively quiet and have a good feel to them which is hard to explain. They are low profile and the whole keyboard is light and thin. Obviously well made with nice touches such as 6 quality rubber feet recessed into the bottom. Solid wireless connection / response even when gaming in TF2, twitchy first person shooter.
Cons: Open keyframes. Depending on how you use might get alot of crud in there.
Summary: I play a lot of First Person Shooter type of games was a bit worried about how a wireless keyboard might effect the responsiveness of my gaming experience. Fortunately I have not noticed a difference since switching to this wireless keyboard! It responds just as fast as my old wired keyboard.
Summary: This is a great keyboard. I have two of them side by side. I love the soft touch and the soundless keys. One of my favorite features is the computer sleep button. I would recommend this keyboard to anyone. Great, great quality.