Man, I use Amplitube al the time. I may not be the king of guitar tone, but with my combo set the way I want it, a mic in front and back phase reversed and then adding the Amplitube track to those two mics(this is for heavy guitars), I feel like I never go wrong...ever. I even used to use it by itself too and it was fine, not ideal, but good enough for EP's, more than just demo's at least. Hmm maybe my settings are different than most, but I love what it adds to the mix with everything else. That's just me.