I didn't cry as I expected to. I cared for the characters. I was content with the ending.
It was good. I like it as much as Angel Beats!, just about. They had a lingering problem following them, but this was a crazy Love Triangle, surrounded by 'Love Lines'.
Bottom line, it's was good, upbeat, and funny.
Got sad into the 20's of episodes, but redeems itself with happiness and laughter.

I can see the appeal.