Aghh this manga was one of the craziness.
But overwall I like it. I like it because it made me happy, angry, mad through the point that I was "Ok, I am reading the last chapter. If I will not like it how it end I will drop it."Don't get me wrong, but I've read manga like Bokura ga it or Koizora and after this all I can't take it anymore to read another one. Not in such a short period.
So I think it's obvius. This manga seems to me to be like a roller coaster of feelings. It deserves 10 in my opinion.