I liked it. I had a good time with the action-packed parts in the first half and then while initially I did not at all enjoy the mid-book character death fakeout, I DO like that I read the Champions-centric version of this, which delved right into the immediate fallout and really fleshed out what happened and why. Sure, we ultimately kind of remain status-quo at the end of the day, but it's done in a way that at least gives us a lot of insight into a character that I hadn't personally clicked with and now feel like I know a little better.
Note if you read this one, it makes Champions Volume 3 almost entirely superfluous, with the only thing that version having that this does not is the Monsters Unleashed tie-in, which is fairly superfluous to the MU story so, grab this, ignore Vol. 3 and enjoy.