I loved this manga.Yes all the characters are crazy but think about what they had to go through. Rape, death, and watching the person you like go through hell right in front of you. It would make anyone crazy, but I loved it regardless.
Like I said I liked it, if it is your first time reading yaoi I don't recommend it because it is pretty hard to read at some points. But honestly I did like it a lot especially since the ending was perfect for the story line. So if you are just getting into yaoi I recommend saving it for later but if it isn't then I think it is a great read.
IM SORRY FOR DRIPPING BUT DRIP IS WHAT I DO - Jooni (づ ̄ ³ ̄)づ