The ending feels a bit rushed but I also like it this way; I mean-- rather than focusing on the romance side of the manga I like seeing the characters' hilarious banters with each other.
But am also sad we never got to see Manager's face or have a better backstory about him. Like... why does he refuse to show what's behind those glasses ? !
Another thing is that I REALLY MISS fluffy haired Ichirou, but I guess we sort of got it back in this ending...?