I've had a fender blender for a few years, I love it, its got a synth like fuzz sound and works well with bass. You should also check out Devi Ever if you want bass fuzz, all of her pedals are the sh*t for bass fuzz.
I play through a vintage Blender occasionally, and it has a huge low-end boost when engaged, but it's only really bright enough with the boost is on. Gnarly, twisting, blending tone, and if I only used one amp in a normal band, I'd use it as my main fuzz. Blows a Big Muff out of the water.