It's a cool and warm, romantic anime that I've ever seen in my life. And it will always be. It has good story, and good art. It's a slice of life anime. The most touching anime. The protagonist feel very nervous about holding hands and kissing her. There are some place where they both get jealous and possessive over another.
And it has good music and song at the ending scene which makes it most beautiful. And it has happy ending. Most of people want it's second season but i would say that it is good tha way it is.
It's a must watch anime you should all watch it.