Anybody have experience with these? Somehow these totally slipped under my radar. I just saw a boost and tremolo pop up on my local Craigslist... I'm super intrigued. I've done a little research and these don't seem to get much attention. Anyone ever used any of these pedals? How do they sound? Are they big? It's hard to tell from pics, but they look like they are slightly larger than a Boss pedal.