I have it, but don't like it at all I'm afraid. When it works; it works fairly well, but it is terribly inconsistent. Scrolling for example is hit or miss; sometimes it will work and sometimes not. It will strangely reverse scrolling direction as well, without any user intervention. I'm looking for a suitable replacement right now as it is just too frustrating. My initial impressions were favorable; certainly a big improvement over the pseudo-trackpad on the bottom of the keyboard, but it's to the point now that I'd rather not use the computer at all as deal with the T630. I'm reinstalling the drivers right now to see if that makes a difference, but honestly, you shouldn't have to do that at all. I couldn't recommend this mouse at this point.