My experience was the partying. He seemed to have boundless energy for it and it was infectious.
I remember arriving at a conference with serious jet lag and just wanting to sleep. I grabbed dinner with a few of the other speakers and Bob's energy was enough to turn dinner into drinks and drinks into skipping the whole night's sleep.
I recently bought the Fellow Prismo AeroPress Attachment [1] which is a metal filter and a new valve head which makes any inverted brewing method simpler and, to my taste, gives a more espresso-like result.
I'll often eat with other people, but I wouldn't take a sh*t with them.