Had me a Big Knob for a couple of months now. Love it!
I've used the central stations at the local university before, all of them were broken. Don't know if that was a reflection on the build quality or the students care factor.
Adjustable inputs come in handy for A/B ing your mixes on the Big Knob.
Love the small footprint and not having to reach to the racks to make adjustments.
If only I could stop playing with my Big Knob...