I ordered Mike as the bonus character for preordering the starter kit. I have no problems with the figure or the character in-game - Mike is one of my favorite Disney characters, and the toy is well-made. He will look good on my shelf when I'm not playing the game. They toy could probably stand up to kids playing with it, although I'd be a little worried about his spindly arms breaking off.
The problem is that in order to play the initial 3 adventure of the game in co-op mode, you need two characters from each world. So the best deal is to buy the DISNEY INFINITY Figure 3-Pack: Sidekicks, because you're essentially getting 3 figures for the price of 2.