Minor spoilers ahead, and as always, I'll black it out.
Black Hand's side story was fantastic. He's one of my favorite Green Lantern villains, so I was very excited to see that half the issue revolves around what he's going through, on his own, as he tries to escape the Indigo Tribe. With everything that's happened in the past few years with Blackest Night, it's nice to see him un-Indigo'd trying to escape. Key word: Trying.
Phenomenal reveal at the end of this issue that could set up an amazing future story, and the lead up to an awesome story. I won't reveal anything here, but it's a heck of a ride up to that final page.
Doug Mahnke's art is wonderful here, and what I enjoyed most about his art on this issue was that he's great at developing the world these characters are on. There's a lot going on in this issue and Mahnke does a great job at adding bit's and pieces to the background to really flesh out where these characters are at. His background work gives this issue great depth to the overall world.
Geoff Johns is a world-builder, especially in Green Lantern. We should all know this by now. While this isn't one of my favorite story arcs of the series, there's so many great bits and pieces to the Indigo Tribe throughout this arc and issue. He continues to make Green Lantern one of the most interesting books DC currently has.
Although this is the conclusion to the story, it feels really anti-climactic. The story just felt like it's main goal wasn't to give the reader more information but rather to bring back Black Hand.
I felt like the Indigo Tribe's story was completely overshadowed by Black Hand's side story, which is a bit of a bummer since the whole arc has been about them and the history of this Lantern tribe. I felt like I didn't get enough of that story. It fell a bit flat for me.
I could talk for hours about the closing to this issue, but I think it's best if you just read it. There's two great stories in this issue. While one of them may have over-shadowed the other, they are both fantastic and well worth your time.
Doug Mahnke does a great job and building the world these characters are on. While the foreground art is awesome, keep your eyes out for the little things in each panel that add to the overall development of the planet the characters are on.
On the down side, the Indigo side of things felt a bit anti-climactic, and the actual Indigo story was completely over-shadowed by what was happening with Black Hand.
Overall, this was a fantastic issue and I highly recommend it.