Joans place is lovely in a very nice neighbourhood. It's close to the metro station and it's a nice walk e.g. down to Harvard square. Joan was a great host, very flexible and easy to work things out with, though we didn't manage to really get to know each other partly because we were there during COVID and partly because our schedules didn't lined up very well. The room itself is very homely.
All in all a very good experience.