Gonna join the consensus and say it's a fantastic book. One of the best DC books in the past 20 years imo. It's a book I always recommend to people who don't read a lot of comics, because it's pretty self contained and creates an engaging environment all of it's own. The art is a perfect match and the writing is super tight and clicks together perfectly. A huge cast of varied characters who are interesting for different reasons... I could go on about this title.
I would love for them to bring it back and (if I'm just going dream picks) have Remender, Azzarello, Cates or Carey write it. More realistic picks would be Simone, Williamson and Orlando.