So I finished reading this series and good God is it all over the place! My opinion on the series seems to be the same as everyone else's. The first 16 issues (the first 3 trades) were crap. Then Lemire came on and wrote Green Arrow gold. He left far too soon allowing Keinsburg or whatever his name is to come in and write a mediocre story tieing the comic closer to the show.
I actually read Lemire's run first and was so impressed with it that it compelled me to labor through the rest. His run was iconic and I have no idea how DC could have let that creative team go. It baffles the mind. It reminded me of Matt Fraction's Immortal Iron Fist, which I'm a huge fan of. I hated seeing that run end.
The final run that was closer to Arrow was decent, but following Lemire's run, it was destined to flop. And what made it more frustrating is that, as a fan of the show, everything about the run just felt like they were trying to cram EVERYTHING from the show into one story. TV show tie-ins came first, plot second. The more I think about it the less I like it and am glad for a new creative team with issue 41.
Seriously though, I want Lemire and I, Vampire artist dude back.