We'd deliberately chosen a hotel close to the centre of things - ridiculously expensive and full of elderly Americans loitering in the hallway - noted for next time. Berlin was great - the man who got in our carriage on the underground one night pushing a trolley containing a vast boom box (and who then got everyone in the carriage dancing) summed up the anarchic feel of the place.
As for Folsom... well we crammed our entire Berlin sightseeing into two hours on Sunday afternoon - very bad.