Truthfully, I had to manage my expectations for this film given X-Men: The Last Stand was the last real X-film released, but First Class was good! I loved the plot of the movie, I loved the fact it wasn't set in any time period we've already seen in an X-film, and the effects were great!
Lately, the last few new releases to theatres have been good, but not good enough to make me want to pay movie theatre admission to see it again -- X-Men: First Class is the first movie this summer that I want to go back and see again. I'm a huge X-fan (and Marvel Comics fan), so I generally know how the story goes... but this film threw a few twists at me I wasn't wholly prepared for, and they were great.
I think my only criticism so far is the portrayal of Emma Frost. The effects for her diamond skin were better in the Wolverine movie and the character never donned the accent in the movie. But, like I said, overall, this was a great movie. I consider X2 to be my favorite; First Class is now my second favorite ;)
i thoroughly enjoyed it! the action was perfect and the big fight at the end was very well-done ;) if u enjoyed the x-men movies, im sure u'd enjoy this one too.
of course as an x-fan, i expected to at least see maverick as a teammate along with sabretooth n all them, but still... the liberties taken were still enjoyable. i'll definitely pick it up on dvd when it comes out =D