From reading the Ultimate-Guitar forums i thought people only went to Guitar Center to listen to other people play, and then plug in and play at a stupidly loud volume some shred peice to melt the face of the other person. So many of them stories over on that forum
I have to say though, i've never seen anything like that at any instrument shops here.
I love my Rocker 30! I have owned several Marshall amps in the past and the Orange has a fatter bottom end then any Marshall I've played through. The Rocker 30 dirty channel is great for playing Stoner Metal, classic rock, heavy metal and blues. The overdrive has a nice crunch for power chords and sounds massive. The clean channel has a nice warm, class A chime and is very satisfying to the ears. I do notice that both channels have a very touch sensative feel when the pick meets the strings and shows the individual personality of each guitar plugged into it. If you get a chance, definitely check one out, as it just may have the sounds your looking for.