Sara is absolutely the best host! We had more than one change to our reservation and Sara not only accommodated our group of 2-3 over a period of a month, she went out of her way to allow us to stay in the apartment when our other reservations fell through at the last minute. Sara will be at the flat to greet you if you like, but will accommodate requests for lock-box entry for those who wish not to have contact with their host. As an aside, the flat is very well-appointed, with all supplies needed for basic cooking and hanging out. This is our second visit to Porto staying with Sara and we hope to utilize this delightful spot in the future!