There are spoilers in here if you're worried about things being spoiled from 10 years ago.
Starts off strong and fun with the Cyclops/Wolverine/Fantomex mission to The World, and I love how this sets up the later X-Force run. Wasn't especially impressed about Weapon XV, which is kind of a bummer, but fine. I just didn't really buy the Magneto reveal (I realize this is a controversial thing and my opinion is nothing new, so just add it to the pile), destroying all of NYC just seemed like a weird choice that made the whole thing even more unbelievable than a comic book about mutant superheroes already is. And then the jump forward to the future was interesting, although again it felt distant and there wasn't any way to connect with the characters, and then there was the Phoenix and I guess some people are really into the Phoenix but I'm not especially.
The artwork was very stellar in this one.
Cool ending to the run, but there just wasn't as much in this one for me to latch on to. Very impressive series over all though.