I got one for xmas - don't recall the brand though...
It actually works great, except it doesn't have memory card slots on the controller, but on the base unit, so no Live headset. It's the best wireless controller I've used, but I still won't use it much. I'm pretty picky about the feel, and no aftermarket brand can match the feel of the original controllers. The joysticks on the wireless one are stiffer, and are harder to operate smoothly for minute adjustments.
That, and it matches the "S" controller - I'm so used to the big fatty controller that I can't change now.