It was a strong showing of a comic book series. The story was good and linked back well to the three X-Men movies. The action was strong and there were good twists that didn't always turn out the way I expected them. Though a bit perdictible, it's a comic book genre and why would I not predict it. Just like any "book" turned into a movie - there are certain things you cannot change. And I always like the "stay to the end of the trailer bits" and this one did not disappoint.
Though it wasn't the best movie ever - it was solid and kept the action level through out the movie.