I've had my eye on that MXR M80 for awhile but all of the demos online just make it sound horrible. My co-worker that plays in a cover band tried one out but hated the distortion, but he's not as obsessed with bass fuzz/dist as some of us are.
...also a good friend of mine who's also a co-worker just got the axe. Totally his fault, and everyone saw it coming, but it still sucks. Super nice guy, but you have to show up to work. That's literally all he had to do was ****ing show up consistently and we would have been fine. He couldn't get his **** together, even after multiple warnings - now he gots no job.
i used that MXR m80 in psyopus, it was a nice grindy distortion and had a decent preamp/eq on it, but definitely wouldnt want it for doom/stoner stuff.