I enjoyed this manga thoroughly. It was well written and the characters seemed lifelike. Had its shares of moral dilemmas (whether you agree with them or not is another matter). But as many of you all have said, the ending did feel rushed and many of the loose threads weren't resolved. Either way, I give this a 10/10 for its unique plot, and kept me wanting more.
Now I kinda feel empty since I don't have anything else to read.