This manga was hard for me to like at the beginning, but gotdamnit I fucking loved it by the end.
I had a great time with the jokes and the fact that midway in the story the author said fuck it to the shonen tropes and did what he wanted made the story jump from a 4 to an 8 immediately.
And oh, the ending... Fuuuuuuuuck. It broke my heart and almost made me tear up, my throat actually hurts for holding the tears, but I can't hate it. The ending alone made the story jump to a 9.
You MUST have balls to make an ending as definitive as that in a harem manga.
As I said, the start is rough but it pays off if you stick to it!