Received my CCB at the weekend. It looks great, and is just awesome fun.
The only pedal I own which doesn't react with the CCB at all is my Raygun FX Beef Box fuzz. Just a standard nano-sized single knob fuzz, but it does nothing. even when I try and group it with other pedals, it just completely mutes the signal. Other than that, I've been having a blast with:
Boss HR-2 Harmonist (arpeggio harmonics, Rainbow Machine style!)
Aria Phaser (Cheapo, but howls like a car alarm!)
Nux Time Core (Budget chinese delay, but a very good pedal. Amazing decaying repeats!)
Any EQ pedal (Tweakable synth drones!)
Pignose Detonator (BROWN SOUND!)
All my dirt boxes just make it scream and drone. Really fun. It is the start and end of my chain, and I have my whole board going through it.