Super easy check in and check out, we didn't have a chance to meet Ana face to face but she arranged for the key to be given to us at bag drop.
The flat is in a residential area that's a short walk to the subway or the city center. We were not expecting there to be so many hills in Porto so we didn't use the bikes, but they are a nice touch.
Overall we had a really nice stay, the only problem we had was with mold on the walls in the bathroom. It was really strong, we had to keep the bathroom door closed at all times otherwise it would make the whole flat smell. Already made recommendations to Ana, I'm sure she will address this for future visitors.