I really wish Bendis would take a big step back from the giant pile of Marvel series he's writing and really just focus on nailing one of them. He's spread all over the universe, and as such pretty much none of his current series are paying off. 
 For instance, this volume finally sees the X-Men unveiling the mysterious person behind all the super-advanced Sentinels that have plagued them since the beginning of this series. It's been one of the driving narrative forces behind this series, and one of its most nagging questions. I might go even so far as to say it's the only thing keeping me interested. And here, well. The answer's just kind of plopped out, via an incredibly anti-climactic and unsatisfying twist. Turns out, (view spoiler)[this whole time it's been Dark Beast operating behind the scenes. A character from another universe who we have not seen or heard from in this storyline at all. I think the last time we even saw him was in Remender's Uncanny X-Force run years ago. It's totally unearned and not even remotely shocking. (hide spoiler)] 
 Then we move on to the Original Sin tie-in (sort of?), which is three straight issues of exposition. That's it. It's three issues of X-Men standing around, almost exclusively in one room, arguing about Xavier's will. Then it's just the will being read. Nothing happens. I have no idea how it connects to Original Sin (I guess just because She-Hulk "realized" there was a will, but a will shouldn't be a secret?). It couldn't be more boring if it were just blank pages. I guess it will all pay off in the next volume, but I don't even care at this point. 
 So, if you're thinking about getting into either of Bendis's X-Men series, I'd say just skip them altogether. They aren't going to pay off. Same probably goes for Guardians of the Galaxy, but I'm going to give it a few more issues for some reason. And to think Bendis used to be my favorite Marvel writer!