I bought a Boss RC-20 today. The thing has an insanely long loop time 5min!!! It has the ability to store ten loops and dial them up later. It's very easy to use, two foot pedals for record, play, stop overdub, clear. Reverse must be done by hand unless you buy a pedal for it. I run it like this: Conklin GT-7 -->D.W. Labs Router--->SansAmp BDDI---->Compressor---->Mackie 1400---->SWR 4x10, What you put in is what you get out, or very damn close to it. All in all, it does exactly what I need it to. I'm using it to lock in a loop, then play around with it with one of those Alesis air FX units. The Air FX thing is VERY cool. Pick one fifty programs, move your hand along the X-Y-Z axis', get crazy sounds. The one thing I wish it had is a midi hook up to change patches, it was cheap though, so it's OK. Maybe the next model will have that. It has a bunch of just plain wacked out effects, and a bunch of flange/phase effects. It also has some synth patches, which can be cool. I run both these things through the router, to allow true bypass.