This is a decent game overall. Like other reviewers have mentioned, the lack of online play kills the continued appeal of this game. The create a player mode is alright and offers a few different options and the graphics aren't bad at all. The gameplay is sufficient and not as repetitive as I would have thought.
Overall it is worth the rental, but probably not worth a buy unless you are a big fan of tennis.
I definitely think this is the best tennis game out there for a Sony product. The only complaint was the lack of online. Definitely worth playing and renting but I think the lack of online would keep you from buying it.