In general the pedal is well made, with good components, handwired(!) and the pots are functioning very well and give full control. In general the fuzz sound is not bad, however there is a big boost at the trebble.
But, there was something wrong with the one I got and I could not check all the expected features, such as clean up with the volume. The pedal's output was dropping rapidly after 2-3 seconds of play. Also when the volume was even slightly dropped, the volume of the effect was dropping at approx 20% of the initial setting. There was no clean up or whatsoever. I have never experienced such a reaction with other fuzz face type pedals. That made the pedal not functional and I returned the pedal.