Prisoner's cool.
AFAIK it's the smallest modulated analog delay. Compared to Carbon Copy, Prisoner's modulation can be controlled from subtle to extreme. So it can be used as chorus , subtle flanger, to fatten the sound and to create weird pitch bending effect.
It is not as pricey as other analog delay; but it is only capable of max 300 ms and no oscillation (but I dont need that anyway). The bypass is transparent. Noiseless & no low cut. Highly recommended.