Personally I really enjoyed this anime. The history was really interesting, and it's really funny in some points of it. Also it's kind of dramatic sometimes.
The history is not too simple, and not too complex which I think is pretty awesome and makes this anime really different from other Romance animes. Also, it didn't have any filler episodes. Sometimes while I'm watching an anime I need to skip some episodes because they're pointless, but not in this anime!
The ending was pretty awesome, 11/10. I loved the end. You definetly need to watch it :)
The art was great in my opinion, as well as the sound!
The characters are awesome as well. The MC are a Tsundere girl and a really nice guy, and they are pretty well done as well as all the others.
I think if you watch this series and you're into Romance you'll love it!