I realize this series is more of a fan service anime for girls. I would recommend any girls to watch this anime, but if you're a guy you probably won't get as much enjoyment out of this anime. I gave this anime a 5 because the anime didn't show much competitive swimming. The show focused a lot on fan service. For me, the first season was much better and this season was more of just a copy of the first, they just got better at swimming. Although the characters did evolve throughout this season.
The good points of this series for me was the soundtrack was a 10/10. All the songs blended well with the anime. The art was also another one of its strong points. The story was good, but I think it could've been more entertaining at some points. It was a very relaxing anime, but it was mostly do to its soundtrack.
For girls I would definitely recommend this anime!!!