John,
Not as such. I had a Zoom 3030 for about 2 weeks. It was fine in operation but I was worried about its light build. Then I took it to a recording studio and the engineer had a problem with its signal. He produced a Boss GT-5 and so we used that.
I then went and bought one, mostly because its built for gig-abuse. Boss have replaced it with the GT-6 now, which is cheaper and I have still yet to try.
I liked the sounds of the Zoom, but if I were to look afresh now, I would try and find a GT-6 to test drive.
Im not much of a tech-head, but I have created custom sounds that come damned close to what is in my head (even it it meant linking the effects chain back to front and inside out). I dont use anything else, but you need an amp with a proper effect `bypass' loop, and a clean channel too.