Finally got a chance to try the Freqout in-store - pretty sweet! It works very well- tracking is good (sub is a little weird), onset and gain are smooth in either autodetect or momentary mode. It can give you very feedback-y sounds and would probably benefit from some dirt later in the chain. I gravitated to the sub sound. While it invariably has a delayed onset, it could be great for adding heaviness or sfx deep lows. Implementation is clever and it does a great number of tricks really well. I'm thinking it'd be especially cool for synth sounds as you can think of the feedback note as a sine wave that tracks input at a selectable interval. Pretty cool pedal for sure.