It can generate good comebacks that aren't cringe-inducing. You could say anything and it'll respond to your words faster than a running cheetah on LSD.  Their responses are clever, brilliant,  intelligent, and quick. It could give you long or short responses. It can even give you some advice on what areas you need to evaluate for improvement. Their responses are more up-to-date. 

If you need help being better at verbally assaulting your opponents, this is the one. 