I had an exhibition match as Federer last night, and the advanced shots don't bother me. As a tennis fan, it's the great rallies which make this game great. I've had the AI running all over the court chasing shots, before finally putting a great cross court shot away, and they have done the same to me. I don't feel it cheats at all, as whenever they put away a fantastic shot I can't get near, I just do the same in return. Plus, as I mentioned above, even when someone seems to be far better than you, thinking on your feet can help you adapt your game and pull out a win.
So far for me, this is better than Top Spin was on the Xbox. Before I get too involved in it tonight I want to sit down and plan exactly what stars I want my guy to have, then I don't have to think about what training to do, I can just aim for the ones that give me the right stars.