Starting with the story. the characters were not true to their motivations. Instead of having a well-defined goal, we had the story of a mystery novel with the mother being the ultimate bad. I mean come on the mother left because she lost a match. And the attempted comedy threw the anime into the dark trenches of cringes. The protagonist has a sister who comes all the way from Denmark to beat her and then after being all smug becomes very compassionate. At no point in the story, winning a cup or winning for senpai or even the stalest "power of friendship" come into the motivation(winning for the team doesn't count). All characters say they madly love badminton but baring a few moments it's rarely seen. Compare that to Haikyuu which had all of your usual tropes, the thrill and rush of playing a sport was definitely felt by the viewer. Hell, I played volleyball for a month after watching it.
The characters were the worst part of the show. The angry one becomes the side and quiet one and then becomes the winning one all by realizing that she is tall and heavy. The protagonist starts from being a yandere then becomes a kuudere and keeps switching till she meets her mother who in my opinion is the worst character of all. The remaining charcaters have paper thin personalities and are pretty much disposable.
The music isnt bad but the way shows such as Naruto, Haikyuu, BHA have used it to raise the tension during the fights, I was very disappointed to not see it happen. Overall, its motivated me not to play badminton anymore and that summarizes my review.
