The apartment is really well decorated and very spacious. There were three of us and we had plenty of room. The location in Barrio Alto is also perfect and close to many restaurants, bars and interesting sights. There's also a fully equipped kitchen and washing machine, but we didn't use either very much. There's no air-conditioning, which shouldn't be a problem normally, but we visited Lisbon during the exceptional heat wave, so it was pretty hot even at night. All in all, I would very much recommend Maria's place. She was also very responsive and supportive throughout the entire stay.