We went to it. We saw it. We enjoyed it.
Of course, it won't be a hit with everyone, but artists and animators who understand and enjoy the art of caricature should get a kick out of it. Is it better than Cars? Eh, not really. Is it better than Toy Story, I think so. And how was the short? Pretty kickass, honestly.
For some reason, every time I see a PIXAR film, I'm awfully tempted to fire up Sarcosuchus_imperator and do a CG project. If only it weren't so expensive in terms of electricity to run Maya and the RAID it runs on... (I really kind of need to be paid to run the big iron these days, but, that might not be enough to stop me.) I think it's worth pointing out that few other CG films really give me this sort of thrill. Dreamworks, for all of its efforts (even the good ones), never really makes the level of energy it takes to actually inspire me to create something. Non-PIXAR Disney often has a similar problem, as does Warner's animation. Exceptions are pretty notable, however, even if the CG is comparatively minimal.
It's also worth seeing on the big screen. The grandeur and effort in terms of shaders and lighting PIXAR invested into Tokyo, Italy, and London for these virtual locations are nothing short of amazing, and are packed with humor (subtle and otherwise). (Of course, not owning a large flat panel liquid plasma LCD display teevee, perhaps this is a distinction that's sort of lost on folk nowadays.)
All in all: worth it, and I'll see it again.