Having played the demo, here is what i thought:
Likes:
I liked the shot system. It will make matches very interesting
The ball trajectories/physics
Dislikes:
Graphics(not entirely necessary for a good game though :))
Timing Window
Animations(look a bit odd, only when compared to modern tennis)
Movement(it is too blocky, if movement was smoother, it would improve the shotmaking)
I have one main question.
Is there a movement/timing window? Because a lot of the time i would aim my shots, but the character would move instead and miss the ball :unsure: )