-It was beautifully animated.
-It brought attention to a sport that doesn't get a lot of attention.
-Gave us a show about female athletes without making it entirely about fanservice.
Everything else was generally not good or just not enjoyable for me to watch. I went into this thinking I was going to absolutely love it. I was so ready to fall in love with these characters. And then... I met these characters. I have rarely watched an anime where I found main characters to be quite so unlikable. I kept holding out, not dropping this show in the hopes that they would grow on me. Instead, by the last episode I just felt more frustrated. The story and characters are both just lacking.
