Play me, I'll make her seem S!
Seriously, she's an A. Hard to blockables, meterless 40+ percent combos in the corner, able to control the entire screen, get-in-free tool for a bar, wins most trades. Her main problems are lack of good defensive options, inability to cancel strings into rockets that can't be poked out of or full combo punished (24xxrocket, 4xxrocket, and F4xxrocket are about it), and how much she requires reads considering the huge startup and meh recovery of rockets.
Edit: American Way is pure gimmix, if you know how to counter it it is almost completely useless.