Boss VF-1 Effect Processor

If you're using it for mostly guitar, chuck the GT3 and go for the '6! Amp
sims, distortion effects, and wahs are way better than the VF-1 or the GT3.
Also the GT6 isn't all that much different in price than a VF-1. You can
sell the GT3 (while they're still worth something) and more than make up the
price difference.

Just MHO.

Tim