One of my friends saw it last night. She basically said, it's solid as a stand alone movie but if you try to apply any logoc, the plot holes are a mess.
It's a convoluted mix between tying in the first two movies in with all the drivel in between where they pick and choose their spots to tie in the actual comic timeline.
So if you follow x men it's a diluted money grab, but at the surface a solid enough film.
Another friend of mine told me it's good, I gold him I don't trust his opinion since he saw the 300 sequel in theatres