Any opinions on the accuracy or quality of the built-in amps one GarageBand? I still like to use GarageBand to play and record through, my go-to models are the Brown Stack (EVH,) and the Sunshine Stack/Combos (Orange.) Fenders seem to come across well too, in general.

On the other hand I cannot get the 'Modern American Stack' to sound either good at all, or anything like a Rectifier (have gone pretty deep to adjust the EQ and other settings in plug-ins, different mics...) Any hints?