Don't hesitate to book with Carlos, you won't be disappointed. From a practical standpoint his flat is in an excellent location, on a beautiful street in the heart of the city within walking distance of all the sights and sounds and close to the metro for travelling further afield. The room is kept very clean, has a wonderful view and the food and coffee included for breakfast is the ideal way to start your Lisbon days.
On a more personal note, Carlos is a genuinely friendly, kind and warm individual. He is an excellent host who wants to share his passion for the city but also appreciates your privacy. One of my most enjoyable AirBnB experiences ever.