I had a great time at Mafalda's place in Chiado. Lurdes, the apartment manager, was very flexible and helpful with the check-in and check-out. The apartment is in a great location, in a quiet street near everything and most importantly, with a great view of the river and the port! It was also very clean and had everything you might need for a short or longer time stay (hairdryer, washing machine with laundry, iron and board, etc). Highly recommended.