The enjoyment of this serie is difficult to comment, in one hand is depressing and oppressive for me to see how Makoto falls deeper and deeper into the depravity is annoying and hard to see how the girls love and hate him so easily, everyone loves him, everyone fuck him, and that's soooooo irritating.
In the other hand is a good lesson of how life is, you can't keep fucking girls and making them falling in love with you if you don't make choices, in most of the animes the main character do something like this (not fucking everyone, but to making them falling in love) and in the end everything ends happily, that's something that in reality is impossible.
Is remarkable to say that the first heroine is in the end the one who suffers more, even when she is the one who loves him more, everything could have ended well if she had satisfied Makoto's sexual needs, so Sekai wouldn't have entered and made a love triangle (well in the end it was just depravity without love).
The anime has many things that can be learned, first of all love only one person with all your might or don't love anyone, half feeling will make you suffer later, if you think that you can love more than one girl at the same time (so difficult and bothersome) you need to love all of them and make choices you can't go with the flow because that flow will only break you later, and the last one is that being too greedy and lustful is bad for your head (LoL, you can lost it because of a knife)
The art is good, but if you want to make a gore end make it uncensored, the anime has good voice actress so it is good.
The Characters have a deep psychological development, Makoto is at the beginning a shy and stupid boy, then a playboy who can date 4 girls at the same time, and in the end make an orgy with 3 girls (full depravity mode) his development is the saddest and most annoying one, Sekai stars as a good friend, then becomes a bitch, later a possessive main heroine (don't manage to control Makoto in the end) and in the end a pregnant yandere who becomes crazy (in the end I don't know if she was pregnant or not, because in 3 weeks you can see a baby even if you open her guts).
Setsuna is annoying and just that is the link between the two main heroines stories, first is bossy, but concerned about Sekai, then she kiss Makoto and from this point everything goes nuts, she goes to France, Makoto becomes a sexual beast and more, more female bitches (I don't want to comment them is boring).
Katsura is for me the most interesting, is the one who loves him more, she forgive him all his sins in the end (there was much to forgive), she starts from a shy, lovely girl, then when she is abandoned she deny it with all her might (to almost the end), she abandon the reality several times, I think that she fucked Makoto's friend (that is unsure), then she becomes a bitch (the only way to get chose to Makoto in that moment) and when Sekai becomes yandere she becomes a stronger yandere to kill her, she opened her guts to search for a baby and in the end she takes Makoto's head to had a honeymoon in her ship, happy end.
In resume this anime to me was really hard to see (annoying and hopeless), but it taught me some things, like make choices (well I already knew it from Tokyo ghoul, but that another story) and to not be too greedy. The anime is breakthrough, but still worth to see.
In the end as I have said before everything could have being solved with a bitchy Katsura since the beginning, but like that I couldn't have seeing the yandere final episode.