I cannot stress enough how great Catarina's place is, nor how accommodating she was to me! I had lost my iPhone on my travel from Porto to Lisbon which, I can tell you, is about the worst thing that could happen to you while traveling abroad (for this reason I always recommend that you have a paper copy of ALL telephone numbers, confirmation numbers and bank account numbers). Upon arriving in Lisbon I contacted Catarina about my dilemma. My situation made it difficult for my entrance into the flat, because she normally remotely opens the door when you arrive after a call at the door. Well I was at a nearby hotel when I called her, making this impossible. She suggested that she would signal the lock every 5 minutes for an hour, ensuring that I could get in after no longer than a 5 minute wait by the door. Sure enough, the door was triggered right as I arrived! Incredibly courteous and understanding. When I entered the place I found it to be sparkling clean and even nicer and more central to everything than advertised! This was one of the best experiences I have ever had with Airbnb and you should jump at the chance to book it for a trip to beautiful Lisbon...