Not bad at all, but...
I would add more onto this game to make it stick out from alternative pong games.
For example, there should be around 4 to 5 difficulty level, or maybe the user should be able to edit the speed of the ball, the size of the bat, and the number of points to win the match.
Also maybe they should be able to change the colours of the ball, bat, background, and maybe even have a variety of music for the user to select.
Good luck!