If you have the opportunity to stay here, you must take it. Sergio is a perfect host who cares about his guests and who truly knows his city. Many have raved about his guidebook. We already had a researched itinerary for the area, but Sergio's book helped us organize our days to best go from sight to sight and helped us add more great sights and find wonderful places to eat. We loved chatting with him. The flat is very comfortable and a perfect base for exploring Lisbon. As someone else mentioned, people allergic to dogs need not worry. My husband had no problem. In addition, Kipu is an ideal, gentle, quiet pet.