I find the story outside the tennis entertaining, but the tennis matches themselves are completely ridiculous. At least in Slam Dunk they kept within the bounds of the physically possible. Also, the whole shock thing every time someone uses their special "waza" was amusing the first time, but it gets more and more annoying. Course, I've only watched up through about 15, perhaps it gets more realistic as time goes on? Not that I'm holding my breath. Oh well. It is fun to watch, as long as I ignore their attempts at making tennis into a martial art.
[Edit]By the way, what the hell is your sig supposed to say? (Pardon my French)