Well, the first big strike against it was that you could've predicted every page of issue #1 purely from reading interviews, reading the solicits, or purely by looking at the cover art. Absolutely nothing, new or spectacular happened in it at all; it merely played out exactly the way it was supposed to play out, with nothing really emotional or exciting about it. It was a dead and soulless issue.
After that, we've had some twists and turns, sure, but I still find the plotting rather slow and stale; the characterization is okay, but it sorely lacks the intelligence, fun, and interpersonal drama that makes great X-Men comics great. The political awareness and analogies for every day problems that real people face are gone, and rather we're treated to little more than endless exploration of the poor decisions of Scott Summers - which continues to do little more than defame his character.