This is a very nice apartment right in the heart of Lisbon. It was clean and very reasonably priced. The small balcony was great for a morning tea or a beer in the evening. Access was simple and Carlos was great to communicate with.
Please keep a few things in mind:
The location is very near to the Baro Alto region which can be very loud at night. Bring ear plugs or noise cancelling head phones if you are a light sleeper. The building is old and we could hear people coming home after a night of partying.
The apartment is on the 4th floor. There is no lift so be prepared to haul your luggage up the steep stairs.
Finally, be careful with the balcony door as it appeared to us you could easily lock yourself outside if you shut it tight.
Word of advice... DO NOT pay to go up the Santa Justa Lift. It's crowded and a waste of money. You can easily access it for free from the stairs behind the Carmo Convent.