I like this wireless PC controller. Well, I have to like it, because it's the ONLY dedicated wireless PC controller on the market. Incredible, isn't it? Despite that, it's well made, feels good in the hand, and seems very responsive. It felt a bit strange going from an X360 controller to this, but I got used to it pretty quickly. There are reasons I can't use an X360 or a PS3 controller for playing games, but I won't bore you with them here, so it's a good job I like this controller since there are no alternatives.
However, the controller has one major flaw, which although I've had confirmed, I haven't ever seen mentioned anywhere else. The Logitech Gaming Software (which itself is very clunky and old), that it uses to allow you to customise the controls, is incompatible with Steam. That's right. It's incompatible with the world's most popular digital gaming platform. My one requirement for this controller was to allow me to map the controls to mouse and keyboard commands, but the analogue sticks suffer from a weird hypersensitivity when Steam is running in the background. Both Steam support and Logitech support have been able to replicate the issue, acknowledged it exists, and have sent it to their developers to look into and fix. Until this happens, the jury is still out on this controller. If they fix it, then it'll get an extra star (or two!).
*UPDATE* After several months, neither Logitech (who admit there's a conflict but can't fix it) or Steam (who refuse to admit there's an issue) have been able to fix the problem, so I guess it won't be getting that extra star. Shame.