As the owner of a SansAmp RBI that has been serving me well since 2004 and also user of several Zoom units, some of which emulate it (never even cared to A/B them, serve the same purpose OK) I find the Tonehammer WAY LESS PLUG&PLAY. My experience is limited to the frequent use of a Tonehammer 350 head (paired with a DB410, the classig looking one) and the pedal 3 times in studios. The overdrive it does is not pleasant for me at all, too on the hissy side for me, not fuzzy (which I definitely hate) but still annoying, not "bass-musical" enough for my taste and style (thick crunchy 5 string, both fingerstyle and picked), even tho' it seems to be hi-passed (doesn't seem to lose lowend). The lack of a blend control is the last nail in the coffin for me so the times I've used that I usually went for a clean and loud setting and put my bass signal thru' my MS-60B (SansAmp+166 comp emulations) before the amp for "pre-production". The combination with the DB410 was loud enough. Low end wasn't as tight as I would've liked (could be the cab), still totally workable, no complaints on the Tonehammer as a clean amp. In the studio, the pedal version is more useful, you can record it along the clean signal and "micro-manage" it to your liking. Still I (and producers) have chosen the SansAmp once and again over it. Friendly in the studio, friendly to amps, IDK, more of an "army knife" (but also the TH distortion has something to its grit that feels obnoxious to my ears, different strokes, I guess). I've tried many Darkglass pedals and those are in the SansAmp category too, it's real EASY and intuitive to get a tone that both you like and is workable out of them.