I first have to say that I am not really caught up on my comic book history - so when I started this graphic novel I wasn't really sure who was dead, who was resurrected, etc. I think the book does as good of a job as it reasonably could of trying to not make all of that too confusing, but if you are like me and you didn't read Infinite Crisis or some of the other major story lines, it can still be really confusing (Why do Ralph and Sue matter, who is this woman that Atom is obsessed with? And when did Martian Manhunter and Aquaman die? And what is up with Aqualad's (former Aqualad?) love life?). 
 The best part of the actual storyline to me (other than the multicolor lights attacking a bunch of blackened zombies) was the friendship between Hal and Barry. I haven't really read much about either one of these characters (I think from the time I started paying attention to comics it was mostly Kyle and Wally) so it was really nice to see who they were, why they were legends, and what makes them so great. The actual plot was interesting, and as this was a Green Lantern book it was obviously focused on power rings and there was a relatively straight forward plot of "there is the bad guy/all the zombies, lets flash a bunch of colored lights towards him so that he dies (permanently)". I usually stick to Batman books where there is a bit more of a mystery, whereas this was a bit more focused on the characters and the concept of death/resurrection. 
 Since I don't pick up comics all that often there were quite a few things that confused me, but I could still follow most of the plot, which was pretty good since I have picked some comics which make no sense without knowing 50+ years of history. I don't think there is any way to really get caught up on all of the things that happen in the DC Universe, at least not without spending a year reading who knows how many books. There were some little things that bugged me, but overall it was a pretty decent book. 
 There were also some really great moments which were grin worthy. For example, when Scarecrow went all Wicked Witch of the West and pulled out the flying monkeys, or some of the conversations between Hal and Barry. Even Lex Luthor managed to insert his own insanity for a while. 
 Favorite lines: 
 (I think it was the Indigo Lantern speaking) 
 If the Green Lantern Corps wage this war alone, each of you must face three billion, four hundred thousand and twenty-three Black Lanterns without support. 
 GL: And if we team up like good boys and girls, how many of these flyin' deadheads do each of us ringslingers gotta hack and slash our way through? 
 Two billion, seven hundred and twelve thousand, nine hundred and nineteen. 
 GL: And THAT'S an improvement? 
 (view spoiler)[Can someone please explain to me how it was possible for the Black Lanterns to dig up the grave of Bruce Wayne, and take the skull from there - which we now know was not actually Bruce Wayne's skull as he was not dead but was just lost in the time stream somewhere - and then use said skull to create a Batman/Black Lantern zombie? If that was possible couldn't they have theoretically just taken any old skull and willed it to turn into a Batman zombie? And then if that was possible, why bother taking the bodies of dead heroes, why not just take any old bodies (which wouldn't be under guard) and just will them to act like the heroes? Ugh, this part just irritated me, I didn't see the need for this bit other than to somehow throw Batman into the book (despite his apparent dead at the time). (hide spoiler)] 
 I was surprised to see the plot actually conclude since this is apparently one of six books, but then I looked up the other books and found out that the rest of the books in this series are not continuing the story so much as just filling in the gaps in this one, which doesn't make a lot of sense - why not just put everything into one book so that we don't have to retroactively read part of the story? Oh well, I'm off to start book 2 and hope that I can figure out where in this original book it belongs.