I play a little bit of table tennis, and a few other sports, and usually sports anime resonate well with me. For some reason though, I found this to be pretty mediocre. There was little excitement, but I can't wait to watch Ping Pong the Animation.
I like the characters. They a vivid and lively. They are all unique, which in the case of a non serious anime, makes it's all the more fun to watch.
Sometimes, the animation was amazing, especially in episode 1, which tricked me into watching it. It's not amazing compared to all other anime, but was amazing in the sense that there was more action sequences that showed the ping pong battle, than just freeze frames of people talking. There were even a few rotoscoped sequences sprinkled throughout the series, and made everything feel much more lively. Unfortunately, episode 1 got special treatment, and most of the scenes afterwards, are just still frames.
There were some details of the sport that you'll learn throughout, like replacing the rubber on the paddles, or the effects of spin shots. The mangaka obviously knew the sport well. The only thing I can point out bad, is that the spin shots were usually reserved for only the highest ranked players, when in reality, they are easy to learn.
The story is whatever, but more importantly, the battles seriously drag the enjoyment down. Every single battle was as mediocre as you could imagine. Everybody always ties, and then someone loses. Or learning to overcome a weakness near the end, and then winning. Or the negative person, learning the meaning of having fun, after being shown a fighting spirit. And many, many other examples of the most cliched things you can think of.