Just saw the movie today.
It was really awesome, probably the best X-Men movie yet. It was even better because I just watched First Class like a week ago, so I didn't have to go back and rewatch anything to understand what was going on. Really loved Young!Charles and Young!Erik the most, TBH. Their actors are just really good.
Definitely looking forward to X-Men: Apocalypse, which is coming out in 2016. If it's gonna be anything like Days, it is probably going to be awesome.