I simply love this keyboard. The keyboard that came with my HP i7 desktop computer was horrible. I just purchased it four months ago and hated the way the keyboard was set up. The delete, home, end, page up/down keys were not in the same place they were on any keyboard I've had in the last in over 20 years. Then the mouse stopped working. I received this keyboard just a few hours ago and it is addictive. I'm in love once again. The keyboard and the mouse are responsive. They do what I want. They don't have their own agenda. I type faster. Before I thought I'd lost my speed and my accuracy.
1 year guarantee is very useful.
I'm giving this a 4 star rating becuase the keyboard is a great design. It gets used mostly by my 13 year old son. He is a heavy keyboard and mouse user with the games he plays. The only issue we've seen is the mouse went through a squeaky period where the plastic buttons created an irritating squeaking noise when he pressed on the right mouse click button. It must have been an issue with spacing and the speed he was pushing it as it went away after a few weeks of use. I'm guessing a little wear on the friction point made it fit together better. Keep in mind he is a heavy user and rates himself on the number of clicks he can do in a second. As such, wearing it through that break-in period may take longer for some.