I Love my Freeze pedal. I bought it to make clean guitar, keyboard type sustain, as I’m sure a lot of people did. I think the thing this pedal is missing is a decay feature.
For instance: play a chord, hit the pedal to sustain, pedal sustains for a period similar to the sustain of an actual strummed chord, then the chord fades out. It would also be interesting if the decay length was adjustable.