I've owned about 6 wireless keyboards for my htpc and they have all had some kind of major flaw. Most of them had weak range or bad trackballs. This keyboard has the best range and trackball accuracy. The keys are fantastic to type on. I have had the best typing accuracy on this keyboard.
Range Trackball accuracy Scissor keys Great layout
Price - if this were $30 cheaper I'd buy a backup just in case Needs occasional change of channel