My 7 year old child has been playing this game for about a week now, and thoroughly enjoying it. My child absolutely loves the Kung Fu Panda movies, and this is a great way to get that fix without watching the films over and over again. All the key characters from the movies are featured in this game.
As far as game play, there are pros and cons. On the plus side, it's a ton of fun to play and kick the you-know-what out of the bad guys. The controls are exceedingly simple. There is no need to reference the manual, and besides I found the manual to be very light on content and fairly useless like most Wii game manuals. The story is pretty solid and engaging overall, but straightforward enough for a child to work their way through on their own.
On the downside, the fighting action gets repetitive pretty quickly, although it's saved a little by the different types of enemies and scenes you encounter. Also the game play graphics are pretty rough and choppy. However the cut scenes are nicely rendered and fun to watch in their own right.
Overall this is a solid game and a good buy. I probably wouldn't have bought it if we didn't already own a uDraw tablet, but if you do own one it's a good addition to the library.