OK, I'm not going to rate it as a game, because that doesn't even make any sense. (although once I've written this, they'll likely force me to star it)
Good mouse, but the plastic rattles and feels flimsy. =| I guess that's why it's cheap, or something. I just don't see why these things have to rattle so much.. and it specifically mentioned it has quiet operation. I would return it and replace it, but it's too much hassle; I'd rather just make do.
I'm using Windows 7: Ultimate (32-Bit) and having no problems, and I've not even used the CD yet. The mouse is a LOT more responsive than your average cheapo mouse, and this shows in games, even with V-Sync enabled.
I do feel that for £24.35, the plastic could at least not be so flimsy and sound so cheap with that incessant rattling. =| I wish this thing was metal; I'd happily pay for a metal mouse and keyboard. xD
Had Amazon let me review this as a mouse, and not a game, I would've given it 3 stars... maybe 3 and a half. I have OCD and so this rattle seriously bugs me! I would recommend this product to anyone who wouldn't have a problem with the plastic rattle. The price is good; I can imagine shops here, selling this sort of thing at £40-£50.
Squeak!