I use the Leeds as a bass preamp all the time and it's great so have been after the Muffy for a while, but haven't seen one in the wild.
I actually have a space on my board that is taken up by either a VTDI or the Leeds depending on whether I'm playing bass or guitar, but sometimes I'm lazy and don't bother switching up between gigs so end up with the Leeds on bass and a backline amp. Adds a bit of pleasant tube drive and compression to any old piece of garbage I might get on the tech rider. The speaker sim is one of the better analog ones I've heard if a bit limited. It also sounds incredible as an overdrive - I love the Tech21 drive circuit anyway but the Leeds gets super nasty without being brittle or thin. Having two of them footswitchable would be the dog's proverbial.
I actually have a space on my board that is taken up by either a VTDI or the Leeds depending on whether I'm playing bass or guitar, but sometimes I'm lazy and don't bother switching up between gigs so end up with the Leeds on bass and a backline amp. Adds a bit of pleasant tube drive and compression to any old piece of garbage I might get on the tech rider. The speaker sim is one of the better analog ones I've heard if a bit limited. It also sounds incredible as an overdrive - I love the Tech21 drive circuit anyway but the Leeds gets super nasty without being brittle or thin. Having two of them footswitchable would be the dog's proverbial.