Old thread but if someone happens to run across this as I did...
I highly and mean this, wholeheartedly recommend MXR carbon copy.
Went to 30th Street Guitars NYC and was looking for a simple, natural sounding pedal that can (most importantly) be kicked in musically.
Wow, the carbon copy really fit the bill. Tried others but man this pedal just works so well. I've yet to even see a need to adjust the modulation trimpot internally. Out of the box, first use at a rehearsal and bam!
To anyone looking for a must have pedal. First stop, try it. Let me know if you agree or disagree