I can not say how many times I almost bought one of these, but the lack of sound clips (and the few there are are pretty bad) kept me from trying one out. I had tried several versions of the Fulltone '70, AM Sunface Si and the list goes on. They all sounded pretty nice, but got really brittle when turning down the Volume knob on my guitar.
So, my name finally comes up on the Foxrox AquaVibe list and Dave offers his other pedals to you at a reduced price. Opportunity knocked and I finally bought the Foxrox Hot Silicon Fuzz. I have never played as warm and as versatile a Si fuzz face before! It has a Grit knob that can get you pretty close to a Ge fuzz face sound, and best of all, it plays nice with a buffer at the end of my chain!
If you like fuzz faces and want to check out a great one see Foxrox.