In the personal i really loved this anime, its sooo good.
Main : The characters has a really good personality, they'rnt the typical anime character shit. The jokes between Sakuta and Mai are really realistic, makes it be more like a normal relationship, they'rnt the typicall shameful relationship from all the others anime. The fact that this anime isnt Echi makes it really good.
Art: The art its just beatiful.
Music: The music its a master piece.
Arcs The arcs are very good, the last arc about Sakuta little sister its really shocking, dealing with loss its something really hard. I found this video about it, i agree with all what he says: https://www.youtube.com/watch?v=1ZCqknZfvdY
Characters: The charcters are really well made, they have an unforgettable personality.
Final: If you havent seen this anime, i really recommend it.