I've been searching for a new keyboard/mouse for a month since my previous Keysonic with touchpad gave up the ghost and everything I looked at failed in one department or another. In my job as an IT manager I use trackballs, touchpads, optical mice, laptop "nipple" mice, graphic pens on a daily basis and can honestly say that the trackball on this keyboard is as good as anything I have ever used to control a cursor. I am using this with a HTPC attached to my 42" tv with Windows 7 64 bit and it was up and running within 10 seconds of plugging it in with no drivers to install. I sit around 10 feet away from my TV (as long as my eyesight is up to it), the signal is fine, keys are nice to touch and give a precise feel when typing. I must admit that I did turn down the sensitivity of the mouse a little as my cursor was flying off the edge of the TV with the slightest of movements but it really is a joy to use. The mouse buttons on the left take a little getting used to but make life easy if you are stood in front of your TV with both hands holding the keyboard. I've not yet installed the software to map the programmable buttons on the left as I have plenty of keyboard shortcuts to my apps already but suffice to say, the default buttons work to open e-mail, browser etc. I wish that the "Media" button on the right would open Media Centre rather than your default media application (media player VLC etc) but I'm being picky now. All in all, a good bit of kit for a media centre PC and I'm sure that it would also sit happily at home as a main keyboard/mouse combination reducing clutter on the desk.