It's been a couple of weeks since I've read this, so please forgive the vagueness of this review. 
 The whole concept -- the afterlife being run like some kind of energy generator for disenchanted angels -- is pretty interesting. It's all based on a typical Christian mythos, but it doesn't read as overly religious or preachy. But.... 
 I couldn't connect with any of the characters. I'm inclined to give the author credit for producing realistic-ish characters (in terms of attitudes, actions, and so forth -- no one seemed like just a wooden face emitting random words) BUT I just found it hard to sympathize with any of them. 
 More than that, though, is some of the really jarring stuff that shook me out of the story and into a state of "huh?" instead. Like... the bee thing. Heaven is patrolled by giant robot bees who make sure you stay in your memory pod/prison. ????? It fit with the whole hive-heaven thing I guess but, wow, the giant robot bees were too much for me. 
 Overall I won't mind recommending it to readers who like high-tech "dystopian" fic (though I hesitate to class it as dystop), but it is not for me.