No idea if this has been hyped all to hell or not, but being a 2 part 48 page comic is great for people like me, who have stopped collecting single books (Honestly, it comes down to weight. I decided I wasn't going to move more than one box the last time we moved, and sold/gave most of my collection away to a friend.) One of the few comics I did keep is the last time Gaiman wrote Batman (With a really cute cameo by John Constantine) so, I will likely ask my brother to go pick this up for me. Not sure if this plays off of the Morrison stuff or not, but it looks fun.
I have to re-read it like the other Final Crisis books, but again this thing makes little or no sense. I really hate Grant Morrison and I'm glad to hear DC is trying to reign him in after his debacle and Batman: RIP.