Re: GT-8 Gas
i've owned all the latest multi-effects pedals including the gt-8, pod xt live, digitech gx300, and vox tonelab se. by far, in my opinion, the gt-8 was the best.
i only have one recording that i did with it, but it didn't come out very good. unfortunately i have no way now of demonstrating the tones you can get with it, but i assure you it's awesome.
it doesn't have as much amp modeling as the xt, but plenty enough to use and the modeling is much better quality. i think it's the most realisting sounding amp modeling you can get. the effects are pro quality and sound just like the pedals to me. i love the reverb, delay, and chorus. you can get much more distortion and overdrives than on the pod which limits you to stomps.
the only thing about the gt-8 though is that you have to get used to the gain settings. it's very sensetive and if you add to much gain on certain amp models, it will get noisy or hissy. once you get the hang of it though you can get some serious tones.