It does sound tubish, the unit itself is for tweakiers. If you dont sit down with it, and manipulate the models and a tube power amp was no used. its going to sound weak in the high gain department which i suspect is why xzyryabx had trouble with getting usable sounds but the models are incredibly responsive to picking dynamics which to an advanced guitarists is a godsend. Literally it can switch to a recto patch, to a bogner, and then to a silverface bassman without missing a beat. Also updates are free.