I've tried this accessory as well as other remote wheels for Mario Kart. This accessory, while being the official Wii version, is good, there is no question. It fits with the remote perfectly and the quality is nice, yet I have a couple of problems with this version:
-The material lends to allowing sweat accumulation
-It is more uncomfortable than other versions of the remote (made of a plastic-type material)
Other than that, this remote is good, yet I would recommend that you look at the Nerf versions of the Wii wheel instead: the wheel is softer, just as functional, and the price is lower ($9.99 at the time of this review).
Hope this helps!