It's a little enjoyable but not for long.The main reason I enjoyed it was because of the super easy Achievements.
It's not a game that you can sit around and play for more than two hours, without getting bored. If you do get bored you could play the 4 player multiplayer with a couple of your friends, which are just minigames from the Story mode. Also by multiplayer I mean not on Xbox Live. Ratatouille could have had better graphics and gameplay, not to forget to mention the glitches and bugs.
One good thing about this game is that it can help your Gamerscore, within maybe like 30 minutes of playtime you can have a good amount of Achievements, even though I still don't have nine Achievements. Bottom-Line rent first, if you end up enjoying it then buy it from somewhere that you can get a cheap copy.