This kinda feels like a minimum in terms of Pong games where it comes down to pure reflex.
You can't really *critique* a game like this on the basis that it NEEDS to be so much better or anything. As its main concept and gameplay goes, it's just a fast game of pong restricted to two places you could situate the paddle. You either press left, right, or don't and there's not much else.
I could ask for more polish on the screens, but everything here seems like it was made pretty simple to the point where there isn't really anything else to say about it. The sound effects are just realistic and satisfyingly similar enough to say, "Okay, this is ping pong". It's just a basic game of fast ping pong with little gimmicks, like a simple smartphone game to play when you should be working instead.
It's not bad, but it's definitely not something substantial. If you just want to kill time, go right ahead.