Martin and his colleagues were helpful beyond the call of duty. A call reporting a minor problem got a quick response and fix-up. After we checked out and were on our way to the train station I discovered my billfold was missing. Thinking it had been left in the apartment, I called our host's number and Martin showed up back at the apartment and helped search for the billfold, though it was by now late evening. To no avail. It seems pick-pockets got at me while both hands were occupied tugging suitcases. Martin was highly supportive, made calls for us to put a hold credit cards, and was a calming influence throughout, making this agonizing incident much more tolerable than it might have been.