Maria Rita is the most helpful host I could imagine - very quick to respond to any queries, incredibly helpful with suggestions and navigation around the city and super friendly. The apartment itself though is also wonderful - large, light, airy, a splendid location with a tantalising glimpse of the river from the balcony, not to mention the beautiful wooden floors, traditional features, comfortable beds, and a bonus toy room that our 3 and 5 year olds enjoyed playing in.
In all honesty I can't think of a better place to stay with a young family. There is only one flight of stairs to climb and it is quiet while knowing you are in vibrant part of the city (with its super location near the castle). There are good restaurants a mere stroll away, or for eating at 'home' a decent supermarket is only 2 minutes away via the street elevator, which also delivers you 'downtown' to Baixa in minutes.
In summary: a lovely apartment in a great location with a super host - all in all a brilliant airbnb experience.