Buckaroo, the MXR Carbon has been my go to for it's warm analog tone...I use it lightly just enough to phatten up my sound as a solo working musician.
Here's a recent post/video I made about it:
http://www.acousticguitarforum.com/f...90#post5192790
I don't use any regeneration, mix at about 45 to 50% depending on song and delay at about 10 o'clock just to
shadow what I'm playing and not get in the way.
the modulation feature is nice and I use it occasionally, however you have to remove back plate to set the speed/depth. I also like that it is true bypass and noiseless. I highly recommend it, a rugged, proven unit.
Hope this helps & best wishes,
eric