I just finished the whole thing. Some dislike how the anime ended, but I think they couldn't have ended the anime in any other way. A "Akane, Kogami and the rest of the Division 1 overthrows the sibyl system" ending would completely waste all of Akane's character development. The ending was fitting.
I really liked the first ED theme. I never skipped it. It's one of those
If I have to rate Psycho-Pass I'll give it a 8/10. Urobuchi did not disappoint.