Just saw it - Pleasantly suprised.
You know how when a really popular movie/film gets a 2nd life, and a larger budget to it & suddenly it sucks? This is what I was afraid would happen to CG:TM. I am pleased to say....it didn't. I would actually call it my 2nd favorite film of 2014.
My only suggestion if you are going during its theatrical release. DO NOT bother showing up early to watch the "special" stuff before the showing. It was SOooo boring, tiresome & I would say the vast majority of my theatre was exhausted by it. I heard maybe 5 times over the 20 minutes of this stuff anyone laugh & often it was a couple quick chuckles.
My suggestion. Show up, grab your seat & as soon as they start the intro into the "trivia" and singing, go for a bathroom break or get your snacks if you don't already have them.