I've owned 1, for 1 month haha. To me, if you're getting a multifx processor, u need to get good cab/speakers to go along with it. I plugged mine into an amp with an 8 inch speaker, didnt sound impressive, but when my friend plugged his XT live into my peavey XXL thru the fx loop, it sounded real good man. Also, you shld seriously consider if you're gonna use most of the efx, if not, you can consider getting a sansamp gt-2 or tri A.C for amp modelling, non digital stuff. Comparison wise, for GT-8 and PODXT Live, I cant say much, because I have yet to get my hands on the XT Live and spent only 1 month fooling arnd with the GT-8, but somehow, the gt-8 looks like its good for its efx, whereas the XT Live seems like a better amp modeller (frm what I see online).