This is by far the most realistic game mechanics available on iPad. That said, further refinements could help, like multi set games, harder opponents once you get to #1 - I cant lose a game any more. Better net players - the few available are a joke, even Federer barely gets to the net. Training is weird, to hit the goals you often have to do the opposite of what the instructions say. But it is still a fun and endearing game - a little upgrades could make it amazing.
McGreedy too about Cross Court Tennis 2 App