I thought it was fvckin awesome... best of the entire series. They went back and did a good job of giving insight into these characters past. I wish they would have given us more on some of the known characters, but then again I suppose they weren't even born at the time.
Most superhero movies bomb (not in the box office) because they ALWAYS try and fill them up with witty banter and light humor (Fantastic Four anyone?). They've GOTTA be dark, and they have to come across as serious. (Batman Begins or Return of the Dark Knight are good examples, vs. the Batman with fvcking Mr. Freeze... UGH!!!) I think they've accomplished this in every single X-Men movie. They've even managed some laughs, but it was done tastefully.
Anybody else a fan?