Other reviewers have commented on how this book is a big retroactive continuity mind-muck that shows a different version of what happened between the old X-Men series and the new (that murky period when the original book was running in reprints...) And while, yes, while on principle random retconning is kind of offensive, I still thought this was a pretty fun book, and definitely a "good read." I plowed through it, and even though I know it's leading towards some silly, overblown space opera with the Shi'ar Empire, I totally want to see what happens next.
This book was fun, and while there are some goofy plot holes, it's basically a pretty cool, pretty propulsive adventure story. I thought Brubaker handled it well, and came up with a few interesting new heros while he was at it. (Really, the only thing I found truly lame was a "secret origins"-style short story that showed a young Emma Frost working as a stripper at the Hellfire Club. A stripper? Seriously -- how lame is that? What a dumb, pointless and utterly hackneyed tweaking on the back-story of one of the most potent female characters in the Marvel Universe. Other than that, though, this book is totally worth checking out. Better than your average latter-day X-book. (Joe Sixpack, ReadThatAgain book reviews)