G-System pitch-shifter sounds great when tweaked correctly and used in appropriate manner. When I was with my last hard rock/metal band (originals), I used it for two different tunes and it worked great. In fact, the intelligent pitch-shifting was the main reason I wanted the G-System. The octave FX were great too.
I then tried to use the G-System's pitch-shifting to do minor thirds in some of my original flamenco-jazz tunes for gigs. Did NOT work well. Pitch wandered too much. Dunno if it was the lighter tension of the strings and my strong vibrato, or perhaps the UTS/mic pickup systems on my acoustic. Never did try the G-Sys with my steel string acoustics. Should have, as that would have showned whether the "floppy" string thing with nylons was an issue, or the pickup deal.
But for electric steel string I've found that it's a great live pitch-shifter. I doubt I'd use it in the studio for that, but I always multi-track for harmonies anyways. Dunno how the G-Sys compares to the Eventide stuff, but I suspect that Eventide is better.
Btw... besides the great FX, a big lure of the G-System is that you can use it as a MIDI controller for everything and it's very rugged (and heavy). I used the G-Sys to control my Bogner XTC channel switching, etc for a while. And even used it as a controller for my Eleven Rack. I just sold the G-Sys earlier this week because it was just WAY overkill for the FX that I need any more. I just need a hint of verb or delay here and there and prefer the amp (Engl Powerball 2 is my main amp) dry 95+ percent of the time.
