ive only used it in my bedroom. I ran in through a line 6 toneport and back out through the toneport into my peavey 6505+ on the fx loop on the return (bypassing the preamp) then the post amp gives volume and final tonality. i know it works for some bands but for me as a musician.. no chance in hell i would take it on stage without a bucket load of backup gear and engineers watching the apps for me. i wouldn't trust it to just leave it there. too many times i've heard clips and audio latency and stutters because my mac decided to start reindexing or was already over loaded and something automatically started up maxing out the cpu and killing the sound.
and nothing beats a nice tube amp and decent rack effects anyway
thats what i think.