Staying at Yvonne's apartment was an overall pleasent experience. The apartment was comfortable, clean and well equiped. Neverthless, we faced a problem concerning our arrival. Unfortunately Yvonne couldn' t meet us to give us the keys and we had to get them using a keysafe which was by the buzzer system of the building in which the apartment was situated. Beside the digits there was a black lever which we found impossible to release, so we called Yvonne in order to help us get into the house. Even though Yvonne finally came and helped us we had lost valuable time of our trip and didn't manage to stick to our sightseeing programme.