This is a beautiful piece of work by the grandaddy of the cosmic, Jim Starlin. If you're familiar with Starlin's past work then this does not disappoint. It's probably fair to mention that you should also have some familiarity with the New Gods otherwise it's difficult to connect. So really, as with a lot of graphic novels out there, this is really only for the "initiated".
Ever since Kirby's Fourth World Saga burst into the pages of Jimmy Olsen decades ago (he and Lois Lane both had their own long running titles at that time) his mythology has provided a rich source of stories that breathed new dynamism into the at times somewhat staid DC universe.
It's my feeling though that they never quite fitted in and might have been more at home with Marvel. In any case they gave DC a suitably menacing arch-villain in Darkseid, their counterpart to Marvel's Thanos. There were times over the years that various writers and artists made admirable attempts to establish long-running series for the New Gods but there doesn't seem to have been a sufficient fanbase to keep them alive.
And now Jim Starlin has wrapped the whole thing up. He's done a great job, touching on core elements of the Fourth World mythos. It's a shock to see so many great characters snuffed out but the way has been paved for something else.
The story has been linked into one of DC's epic crossover series but thankfully the events there don't intrude into Starlin's story. Strangely, Superman doesn't appear on the cover but he appears throughout the story more as a witness to events than as a participant. This is in homage to the fact that the New Gods first appeared in the Superman family of titles.
So, if you like Starlin's stuff, if you know the New Gods, then get this, and enjoy some stupendous art and comicbook storytelling at his best.