I feel like I ask this every time but does Pixar make bad movies (outside of Cars 2)? No. No they do not. And this was no different. This was a very excellently told tale of siblings but in a post fantasy world. The subtext social commentary was awesome. The characters were awesome. There were plenty of a laughs and the pacing was great. I even got choked up unexpectedly a couple of times. Gotta love Pixar! My only knock against this is that you are used to Disney/Pixar characters becoming kind of iconic. I don't see that happening for these characters as enjoyable as they were.
I would absolutely recommend people checking this out. Again - Pixar never fails (except for Cars 2 which I will give them a pass for).