So, I wanted to love this pedal. The build is absolute excellent, heavy and sturdy. The feel of the knobs might be the best ever. The versitality of being able to chain two different tremolos, and place each one whereever you want in your fx chain is awesome.
BUT - the optical tremolo channel has a huge volume boost. Even if I turned the gain knob all the way down, it was still a noticable volume boost. I'm not sure if I got a bad unit but it just made me not love this pedal. The harmonic trem was the opposite, it has a big volume drop but at least you can compensate that with it's gain knob.
Ultimately, I sent it back.