Although it shows the girls completely naked, it doesn't seem like fanservice to me. It seems more to show the beauty of the girls and their bodies, and the beauty of them being deeply in love and intimate with each other.
It's a very sweet story, and I loved both characters very much despite being quite different. Their voices fit them perfectly, showing embarassement and a little bit of tsundere in Reo, and a kind, yet dominating voice in Mai.
The artwork is very nice and soft, really portraying the atmosphere of the anime. The eyes show a lot of emotion, and I love the style of art that's used. It's very warm, and it has a very delicate simpleness to it which I really like.
All in all, I think this was a wonderful anime. It wasn't what I expected at all, but I was very pleasantly surprized. Although having a simple story, it's lovely and charming.
I give this a 10 because I think everything about it was perfect, and I really really enjoyed it!
