Stayed for 1 week, while attending a conference 20 minute walk away. The location is superb, with easy access to beach walks, a casino, the train to Cascais or Lisbon. Because it is in front of a large urban garden, the balcony provides a great feeling of space and quiet.
Communicated with the owner by text, very responsive to our questions.
Parking is an issue, so we recommend taxis or Uber (which are quite inexpensive in Portugal). The apartment is also on top of a popular restaurant/bar with ample outside seating. Pleasant, but noisy until late hours.