I got this movie just yesterday. My husband and I watched it last night. It was great. The characters were consistent with the previous movies. And the new characters fit in with the storyline. The new storyline was believable for the type of movie genre that the X-MEN fits into. I do not like most of the movies that come from comic books, but this one seems to be an exception.
This movie comes with 3 alternate endings and deleted scenes added onto the DVD. You also get full-length audio commentary by the director and screenwriters; and commentary by the producers. The content of the extras is ok if you like that kind of stuff.
I liked all the different endings and all the special effects were killer. I would highly recommend watching the movie. The rest is up to the taste of the individual.