Mine has 25 games on it now, I clean it right after every set.
The ball is *dead*, first 15 games it really was a beast and had a very angular backend, now it hooks in midlane and is dead on arrival at the pindeck.
And I'm talking about playing in the same house/same condition, all things being equal.
When I first got this ball, I was thinking about buying an Anger also, so far for that plan.