Very good! I liked most everything about this one. Lots of humor. Neato character design. Sort of a Fraggle Rock/The Littles sort of a scavenger thing going on. Great voice cast. A GIANT MACHINE. Lots of cheese.
I saw it in 2D, and that was great. I had no desire to see it in 3D.
The kids in the crowd seemed to be with it pretty much all the way through, but I think a few of them got restless during a couple of talky bits near the end. Oh well--KIDS.
We watched this because PSH's small amount of screen time is 100% awesome, but the whole thing is good. Very good.
I liked this a lot more now than I did the first time I saw it.
Be sure to watch the Mattress Man commercial on the second disc of the DVD if you can find it. I'm sure it's online somewhere, too.