not bad...
This isn't terrible, but as a part-time programmer, API is relatively easy for me to comprehend and as such, does not warrant any reason for poor play.
You did a good job recreating a classic game: you've maintained the look and feel.
My primary discrepancy is that, I left the game on for about an hour, and I'm winning...
Therefore you've created a game that requires 0 skill to be successful at, and arguably, the harder you try, the more likely you may be to fail.
All in all, I like my games to require skill, and though this is a very good re-creation of the original Pong, and I understand API can be hard for someone who has always had an IDE crutch, the fact that I score +50% goals w/o playing just isn't appealing to me.