Just because its digital doesn't make it bad.
Its more flexible than single stomps and you don't need to change the knobs for every song!
I know a guy who plays alot of shows and uses a GT8 direct. He traded in his 2 Soldano SLO100's and his rack setup for it.
I use mine with a tube amp, od models into my amps od channel to give it a boost and its awesome. Think how many stomp boxes you'd need!
Oh yeah, I`ve still got an MXR ZW, Boss BF-2 (Japan black label) and I`m going to invest in a metal muff, but the GT8 is my main gigging weapon with the my tube amp.
Alot of people don't spend enough time with these multi fx units. It takes time to match the levels and get it all right but its worth it. 1 power supply, no pedal board required. These aren't plug and play units.
The Pod XT is the worst because all the preamps sound the same!! I`d say GT8, Tonelab, Digitech, Pod.