Justice League United # 2 decided to play the exposition game, and it lost. I don't give a shit about Rann and Thanagar's decades old wars and the dna-baby they made and blahblahblah. Get back to Animal Man punching people in the face using gorilla powers and Adam Strange jetpacking himself into trees because he's a dope.
Much like the rest of the N52, this book would greatly benefit from B'Wana Beast.
That being said, I am enjoying it. I like the team Lemire put together and am intrigued to see how the new girl will fit in.