First, the animation was superb. I know it's easier to do inanimate objects than flesh and blood but this was nearing on photo-realism. The attention to detail was amazing.
The story was your typical "Young Idealist sets out to defeat the evil bad guy and along the way inspires the jaded oldster" kind of thing. But it was done well and made some important points about classism, aging and greed. Plus a lot of bot-kicking action. If you don't know how the picture ends from frame one, then you were probably raised in cave. The journey to the predictable end was great, so all is forgiven.
Robin Williams stole the show, as he usually does. But the other voice actors did a capable job. Mel Brooks was a nice surprise.
I like Robots better than the Incredibles and the inside jokes are aimed square at adults. Go see it.