Nice to look at, bad to play with.
Career.
The career let you build the player stats but won't let you change them after having reached the maximum level, so once you understand that some attributes need to be changed (and that happens very soon on hard difficulty), you have no other chance but to start a new career again. Just stupid.
Commands.
The commands need a quite long learning curve because you have to master them if you want to play against some serious opponent, not just simply dominating every single match in the lower difficulty levels. If you don't place good or perfect shots just forget to win Grand Slam tournaments.
Gameplay.
The normal difficulty is really boring till the GS semifinals, when you will understand quite badly that you're not as good as you thought.....The hard and very hard difficulties are pure frustration.
Conclusions.
It's a game that makes you nervous and irascible. Nothing to do with a GOOD and well balanced simulation. It's simply not that much fun and if a GAME is no fun it's a failure.