Walter is a fantastic host. He was quick to give us tips about the area and provided us with a thorough tour of the flat. The flat is small (particularly the separate shower and toilet), but the space was clean, organized, and the location is fantastic. Just don't plan on bringing very large bags. The building is really unique (several centuries old), but the staircase wasn't built for girl-liberally-packing-for-weeks-in-Europe sized suitcases. Carry ons go up and down fine.