This is simply two compressors side by side. It is a clone of the Famous Ross Comprosser and the Dan Armstrong Orange Squeezer (Ross-->OJ). This is an all analog device. There is just three knobs for the Ross (attack, sustain, level) and just a level know for the squeeze. No computers necessary. This is simply one 1/4" audio in and one out. It is not rackable, it is a pedal.
The setup is very simple. Simply adust how much attack, how much sustain and the level for the ross. You only get to change the level on the OJ. This thing will squeeze and sustain the crap out of anything. Its great. I never got a manual with this, and I would never expect the need for one.
If you want Trey's sustain, or steely dan type guitar tones, or you just want to crunch the crap out of your audience. This thing is for you. It can also be nice and subtle for those who want a nice bluesy or R & B punch. I use this primarily for my guitar of course, but sometimes I click it on for my Fender Rhodes for fun, and it sounds great. It really sounds great with my Parker Fly classic.
I have been using this pedal for one year and have been very happy. I love the crunch you get out of this thing and the sustain is clear and long. The only thing that I don't like is how much noise it makes when you turn on both the ross and squeezer at the same time, but this is the nature of a compressor, not much you can do about it. I used to own a boss stompbox compressor, but I hated it. It sapped all my tone up, but the bi-comp is nice and transparent. It is $265 with a year waiting list, but if mine was lost, or I didn't own one, I would sign up right now!