no harshness? Try an electroharmonix Stereo Memory Man with Hazarai.
It has this lovely knob on it called Filter, that changes the treble response to it, so it can sound analogue or digital. Combine that with the Decay knob that softens it as it decays, or leaves it harsh, you have a seriously versatile delay. You can do digital slapback stuff or vintagey soft decays.
Combine that with a modulator (flange and chorus effects?) and a sort of reverby thing going on. PLUS a reverse delay and a looper. You have a fantastic pedal.
I love mine. So much.