I've just played the demo, and not the full version, but from playing the demo here is the little I have gathered. Controlling your shot in this game is a joke. You have very little control over shot strength and placement. Also, this game makes it out as if tennis players are diving all over the court constantly. Even when in position to make a clean hit, my guy stumbles and dives at the ball resulting in a weak, easily returnable hit. The lob shot in this game is also ridiculous, the computer AI is always able to defend it resulting in a point for them. The game looks great, it's just frustrating to play due to the terrible gameplay aspects. I haven't tried Top Spin 2, but according to the other reviews that is where it is at.
I'm a first person shooter all the way. I try the sports games every once in a while but they don't get my attention anymore. I remember having a blast on the dreamcast with virtual tennis and so I rented it for my 360 and I finally found my sports game. Try it out people, it's great. The graphics are ok, the people don't talk they just open and close their mouth and you have to read text. There are lots of mini games. But all that doesn't matter cause the game play is unbelievable. Rent and or buy this game people. It's worth it!!!!