A charitable 3 stars because the dispatch and delivery was good, but the product itself is a bit sub-par. The problem is that the infrared doesn't work well though the steering wheel. When you put the controller into the wheel, there's a transparent plastic opening so that the infrared beams can transmit to the receiver near the Wii console (so you can point and click on stuff in the main menus). I think there's some kind of refraction going on, because the pointer jumps about all over the screen when I use it from the steering wheel (you have to point the opening at the wheel, to the infrared receivers near your Wii).
Anyway, it works for Mario Kart, which is the primary concern.