The story itself is really enjoyable. More importantly the drama between the 2 mains is done really well and covers a subject matter rarely seen in animation. It uses it's short runtime really well and packs in more than what most accomplish in 40 min. If you like shows about people that are already together and deal with each other, their problems and things they haven't talked abôut, you will certainly enjoy this one. The animation can be nicely described as very limited, the sound is also just pretty ok, enough to not be a bother but nothing stellar. Their isn't a lot of music, but itusually is used really well and the lack of it is pretty fitting and gives it more of a sombre down to earth vibe.
The art is simple and pretty subdue, which i really enjoy, but it's certainly nothing to write home about.
The credit song is a really good thing to end on, as it fits in well with the ending in general.
So if you are not bothered by limited animation and a subdue art style go and give it a watch.