I'm actually highly considering getting this unit, because in theory it will let me sample many different distortion pedals at once, and then I can figure out which one I like the most and buy it. Also, the DM4 has models of the two next pedals I'd prolly want to try: the DOD 250 and the EHX Big Muff(s). Plus I noticed the bassist from Thrice uses it live, so it can't be all that bad. Does anyone have any experience with this unit? , I currently switch between a clean signal and a Boss-ODB3 for super-heavy overdrive. I like my sound, but I'm always wondering if there's something better out there.