This will be a short review from after just finishing this anime. The following is a copy/paste comment of my immediate feelings following the final episode.
I got so into the characters. They were all unique and felt so real. All the ugly and beautiful aspects of human beings. The theme on friendship and the systematic connection of physically and emotional feelings. Very nicely done anime. That ending was the icing on the cake. Character 10/10. Music 10/10. Art 10/10. Ship Complete! 10/10.
The only con I had was only the reasoning I had at the beginning of watching these episodes and questioning the system, logic, and immoral aspect but if I just take it all with a grain of salt and just watch the anime. It will be a fun ride.