Just watched it in IMAX 3D. The "3D" part... not so good. The IMAX part... it's an animated movie, so of course that looked great. The movie... absolutely amazing. It had a great plot that advanced very fluidly. The humor-to-seriousness ratio was also very good. Yes, it was funny, but it was all "good humor", not that type of ridiculous humor that can just ruin an entire movie (e.g. trying to make a situation that has no chance of ever being funny... funny).

So yeah, I really liked it. Definitely wasn't made with 3D in mind, though. Then again, most 3D movies aren't. Tacking "in 3D" to the end of a movie title seems to have just become a marketing strategy to get more money. =/