johnhiot's QOT kicked my ass something feirce! I think she's potenially a force to be reckoned with when in the hands of a good player.
I watched johnoits replay and tried his build/stlye and had my arse handed to me. But I spose I did ok considering it was the first time I played her..... My first attempt at DA was abyssmal in comparison.
What I'm really saying is currently the demigods are different enought that you must have different play style for the more complex DG's like QOT, and making her damage and abilities buffed could remove this different (general rather than assasin) play style. The other generals pretty much all get played as assasins most of the time.
I'm no pro, but really, play vs jon and enjoy.