I posted a small review based on my experience with TWT, and it was a very very bad one.
So I decided to give AO Tennis a try (out of desperation) and what happened is that the game was not bad at all, its not TE , TS4 or FA but it is pretty decent.
The learning curve of the game is pretty steep, I like that because when you pull off hard shots in tough situations the felling is pretty rewarding.
The speed of the ball in AO is much better than the slow mo low gravity tennis we see in TWT.
The player customization is EXCELLENT, you can also download created players from other players (like Federer, Djokovic, etc)
It lacks many stadiums but the good thing is you can customize even stadiums and download also from other players.
The gameplay is much better than TWT, is not the best gameplay ever but it is pretty decent and FUN.
Another small detail this game has that you wont find it in TWT, it has controller rumble feedback.... small detail that makes a huge difference.
I tried it online, played only one match, it was laggy, but will try online again today to see if it was a one time thing or it is always like that.