I bought this item to play Halo 2 for Windows. This is a great product for aiding an easier playing style for Windows Live games for PC. If you're used to an Xbox 360 controller (like me) and can't stand the PC mouse and key controls (like me), then you're like me!
Costing less than a Wired Xbox 360 controller, (which does the same job), this Wireless receiver is both cost effective and still maintains the lack of wires.
However, I have recently encountered a small problem, whenever I paused my game and left it long enough for my Wireless controller to switch off automatically for power saving reasons, when I turned the controller back on, the No. 2 slot around the Xbox guide button was lit, instead of the No. 1 slot and it would no longer connect to the wireless receiver, meaning I had to quit the game and reload from the desktop, frustrating.
With that aside, it is still a very useful device for mouse-keypad hating gamers...