While I'm writing a novel haha, speaking of the Wonderlove, I waited months for a purple/blue one to show up on here, missed 3 or 4 along the way, and finalllllyyy got one and it kicks ass. The MS60B plays into it set up to be a homemade "GatedFuzz" preset, with the standard OC-2 going into that, and then into the Wonderlove, its reallly killer. I haven't put the pedals in the Wonderlove effects loop yet, sadly out of pure laziness, but I know it will be incredible when I do. The Wonderlove beat out the Super Fatman just because it has insaley great sound, and is still very versatile (just not quite as much as the WMD). The sound quality won for me.
The OC-2 Synth Mod is really awesome for some drum and bass jams, which is really all I do with my one buddy. He plays break beats, I play synth bass (or we try to at least). Throw a key in there and it would be very sweet.
It only plays at one volume which is very very loud, and the volume knob on the bass basically only acts as a threshold parameter (or maybe a tracking sustainer, if you will?) - when the bass volume is up high literally touching the strings will make the synth mod crackle. I actually play it into my Zoom MS60B set to a homemade "OctoSynth" preset which is really just an EQ set with the volume cut a little bit. It allows for the bass volume, synth mod, and amp volume to mesh to be a good threshold/volume/tracking sustain all around. I also adjust the other eq parameters a little to get a little more bass if desired, or maybe a little more treble depending on what I'm going for I guess.
One pretty sweet thing about the one I got, which I got in a trade on here for an MXR BOD, is the guy who made it used a three way toggle switch, where as I understand most people use only a 2 way. Usually with the 2 way toggle its either standard OC-2 or synth OC-2. With the 3 way toggle it can be a standard OC-2, synth mod OC-2, and with the toggle in the middle its just a clean boost. Good bonus for the very beginning of my pedal chain. I would suggest it for anyone wanting to do the mod given that the OC-2 should generally be first, or very close to first.
It also has a blue light replacing the standard red.