The style choice is awesome and it's very gentle at the eyes: no big deals to play for long periods of time. Paddle movements fell satisfying, but personally I would remove the bounce at the borders because it can lead to lose the ball if it's arriving towards them. Some simple AI would be very cool to implement with a single player option menu, because in this way I can play even if I don't have anyone near. The sound on goal done is very loud and it could become annoying after not too much time. It could stay like this if you implement some system of score and play a softer sound on goal done. It's cool that you have paddles still retain their speed when the goal is done. Acceleration feels a little bit slow at the beginning. Personally I prefer having a longer playfield, but this is only a me thing, so don't worry! Very cool nonetheless!
Thanks a lot for feedback!
Unlucky I tried making the AI, but gave up since it was too hard ;-;
About the retaining speed and bouncing it's simply done on rigidbodies instead of characterbodies so physical engine takes care of that, not too much work from my side hahaha.
I will definetely make the game more quiet tho