My three-star rating means "OK" or average.
The question everyone asks about the MiWi: Does the remote controller track movements like the Nintendo Wii, which it is styled after ?
No, it does not.
The MiWi console does not "know" where the controller is, how fast it moves or the direction it moves in. The MiWi remote controller simply responds to a shake in an on-off manner, equivalent to pressing one of the controller buttons.
As a result, the game play is NOT controlled by hand motions that mimic real-life games. For instance, in the MiWi bowling game, one shake of the controller starts a power-meter oscillating up-and-down. The next shake freezes the power meter at it's current position, which dictates the speed of the throw. Some seconds after that, the screen shows your throw being taken. Contrast this to the Wii, where you "throw" the ball in real-time, and it responds to your throw speed and height, which is more engaging.
With some of the other MiWi games, like tennis and ping-pong, the game play is more engaging because you can swing the controller like a racket to generate the shake.
Having answered the burning question, for the money it is OK. It comes with a good variety of games. The controllers are wirelss, so there are no cables to snag around. And you get two of them.
The graphics are like the obsolete Nintendo Super-NES, which is what I expected and I think most people would. So, nothing as advanced as a PS2.
The games sometimes seem quirky, which I like. Possibly because they were originally developed for a non-European market.
Just do not be miss-lead by the styling and the name, to think that it works like a Wii.
If you are looking for a low-cost motion-sensitive alternative to the Wii, consider the Eye-Toy for the Sony PS2 and any of the Eye-Toy Play games. You can pick them up for less than the MiWi - if you already have the PS2 console.