I've watched it so many times and each and every time its doesn't fail to amaze/inspire me.
I can kind of relate to izumi a bit that may be why I like this so much. It is the best romance anime I've seen,
Kyoko Hori and Izumi Miyamura (main leads) both have a interesting back story. Though it may be boring for some people because there's not much energy shown by characters, you'll not get dissapointed or regret watching this. This anime might be one of the best or possibly the best romance, school anime you've seen.