The point of a guitar direct box? -Less complex than mic'ing the cab -More consistent sound than micing the cab -No potential for feedback or bleed -Less gear to carry -Smaller footprint on stage I have digital cab IRs in my recording software and they sound fantastic. The hardware units haven't quite caught up, but they do sound good from my experience. I mean, I love my speakers (I have expensive AlNiCo's in my main cabinet), but i'm trying to make this as simple as possible. Have you used modern cab sims with poor results?