I enjoyed my stay in this apartment - well situated, close to public transport links - provided a great base for travelling across Lisbon and taking the train outside. The apartment was exactly as advertised/as seen on the website, and well-maintained, clean and tidy.
David was very welcoming and helpful, inc. providing local retaurant suggestions. He communicated well and was attentive from booking through to leaving.
One issue arose - resolved quickly. On my first evening, there was loud disburbing noise from a nearby building under demolition, continuing into the early hours of the morning. I then reported this to David - he responded immediately. Although the issue wasn't within his control, he did what was possible - I was delighted that the noise stopped during the evenings/nights for the rest of my stay.
I would definitely recommend this apartment for Lisbon short stays. A surprise bonus for me was "Selina" - lovely characterful vegan restaurant at the end of the street.