Love the part on upgrading firmware and downloading more amps/stompboxes etc... i rarely try to download those premade tones online.... somehow i dun really fancy them... but try tweaking the knobs around urself and DAMM!!!! u'll love the tone... unfortunately, not many people know how to control the tone, as such.... they kinda sound rather..... hmmm how would i put it... digital to me...
i usually try not to put too much on anything... just a lil here and there.... i guess thats the trick... and with a gd amp.... i'd say, its up there with the big boys...
i only HATE 1 thing about the pod xt live... the weight... feels like ur carrying one of those tank suspension on ur shoulders.
i play stuff from metal, rock, blues, jazz, funk and a lil experimental stuff... so i would say u can pretty much get a gnarly sound from it, for most genres.