Other people have better experience than I do, but she is one of the BEST at closing in, and should get CH's constantly.
Just a couple of simple tips, close in from the air, and hit them with a simple j.C. This can combo into other attacks too, and has good reach and is fairly safe.
Also, you NEED to learn her drive cancels, not C so much but A and B in particular. B can get you around them.
One thing I learned from TaoFTW, DONT SPAM 2A. It prorates EXTREMELY high so your combo after is freakin useless, use 5b, 6c, and 3c as base attacks. 6b is also useful in mixups. I spam 2a to piss people off, or make stupid n00bs burst early, thinking that its gonna be an insane combo, when in reality you did like 600 dmg -__-..