The relationship between Ikki and Stella is surprisingly well portrayed. The show plays with some cliches like sister love, jealousy and thick-guy-who-doesn't-get-it, but it never does so ad nauseam. I am also surprised by how natural characters react in comparison to many other animes. I found that refreshing.
The show has several subplots, which are interesting, but they also have terrible character obsolescence, meaning the characters of those subplots will never be mentioned again. There is some vague grander plot going on, but it's weak and it doesn't really get resolved.
The fight scenes are visually impressive and well choreographed.
Apart from Ikki, we don't learn much about the other characters. The biggest weakness of the show is its short length. There is also some tedious monologuing going on.
The show has several subplots, which are interesting, but they also have terrible character obsolescence, meaning the characters of those subplots will never be mentioned again. There is some vague grander plot going on, but it's weak and it doesn't really get resolved.
The fight scenes are visually impressive and well choreographed.
Apart from Ikki, we don't learn much about the other characters. The biggest weakness of the show is its short length. There is also some tedious monologuing going on.