well it works on breadboard , first time...great...well over unity, but i'll stick a resistor on the output to bring it down to unity level...
adds a nice tone to the guitar too....
the reverb knob is fine..dry to full on reverb. tick.

the damp works fine too, from dark to bright tick.

( i'll mess with the cap on that to get it fatter to thin...)
the dwell however...hmmm... not doing much really...
heres a clip of it as it is in the schemo, before a unity adjustment ok..
first is bypassed, then on/dry, then turning up reverb.....then tweakng the 'damp'.....then the dwell...(which does nothing really to my ears)
https://dl.dropbox.com/u/7464107/reverbtest1.mp3edit: ok had a had a tinker, think i'm going to make C7 switchable, for dark/bright. 10n/100n-220n...really nice and subtle to bright...will be great on my acoustic too.

probably lose the dwell, and swap that pot for an overall volume instead...better control etc...