I'm seriously wondering what do people consider "cheap stuff" =/
If it's something that people have a hard time countering.....well, good luck, because if you give in against such tactic, then I hardly think you're also a good player. Don't you feel something is wrong when you fall for the same trick more than twice?
Of course the pro with such tactic is way more dangerous, since the moment his trick got blown out, he switches to other technique instantly, but most of the time when you can counter it, then it's your win already.
I find Carl's looping air combo is more dangerous, but not many people can pull it off.
Btw, this Rachel has serious skill, but I must say Hakuman's combo is hurt, really hard.
I like how she uses her "wind".