I don't know how to feel about this ending. Some say it was rushed, but I don't feel like it. What I do feel is that all the drama was incredibly unnecessary because it didn't let the writer to flesh out the "evil" characters more.
Mangaka tried to make the evil characters sympathetic, but was knee deep in drama with unnecessary characters that it didn't allow them to be properly fleshed out and their half-assed motivations made them feel more ridiculous than sympathetic.
Also FUCK ASOU! Fucking cunt was the weakest link, the one that deserved major punishment yet she got to live happily ever after. Also Agawa never grew as character. I have nothing against flat arcs (Marty Mcfly is one of my favorite characters of all time), but Agawa felt gutless or spineless for never telling what he actually felt to any of "his women", specially Asou, who is a major cunt by the end even though she ended up being the "hero" of the clusterfuck she created.
Still I was glued to this manga until the end. I felt anger, anxiety, relief and many other things and I feel mildly satisfied with the ending but it also left me really frustrated by cutting off the growth of Rena and complicating things more than necessary.
This story could have been told with at least 70 chapters instead of 95, but I guess mangaka has to put food on his/her table.