I thought I might give a comment because I am a fan of 86, but I also agree with what Axx is saying here. You don't fall in love with the characters like you could in another similar cartoon (like same genre/niche), but I find the world pretty interesting and I want to know more about it. Characters and their relationships are my favourite part of any cartoon or show (less so than plot, setting, etc), but I still really enjoyed the character design and sort of the melancholy atmosphere of the cartoon.
Overall it is a bit dark and won't make you laugh much, but it is entertaining and I am looking forward to the second season quite a bit (haven't started yet!).
Did anyone watch Sonny Boy ? I got behind on it, but I will watch the remaining episodes. Also yuuki yuuna is going again !