The host graciously allowed me to check in early, but with my misunderstanding of the address, I waited for over an hour on the sidewalk. There is address 3 and then there's her address 3.B. I'm not used to city life so I assumed 3B would be apartment B within address 3. Not the case. The door to 3.B is next door to 3. The apartment is a few blocks from the metro. I like to walk so I walked up to the castle, museums, and also downtown. The apartment is very clean and quiet.