I kept in touch with Jody, not Serena. Jody's communication was also good. If you are coming from the airport to the central station, the location of the house is a bit far from both the station and the cathedral. You can walk on a normal day, but it is very difficult if you have limited days and large suitcases. The house has a subway station nearby but they had closed while we were there. It can be sad if you come across such a situation.
Jody gave detailed entry instructions. It's like a puzzle, but it's solved. :) Elevator is small but very okey for your luggage. It didn't work while leaving the house but this is probably a temporary situation. The inside of the room was clean, but the sink in the bathroom was clogged in our first hand wash. I left it just because I didn't want to tamper with it and not to touch the dirty water. We used the other sink which was cooler. The shower cabin is too narrow. If you have a little weight, it can be difficult for you.