Lovely apartment in a very central location. It was super convenient for exploring on foot and for taking the train from Rossio Station to Sintra. Check in was smooth and easy and the apartment was clean and much more spacious than I had anticipated. Lovely views from the balcony!
The only real negative I have is regarding communication with the owners. This is an apartment run by a hotel, and while this has its plus sides, it also made some things a little more confusing. Sometimes my messages weren't answered very fast and I had to call for a response, and with one particular query regarding check out I was told different things by different people. The answer to my question would change depending who was on the reception desk that day. I felt it missed that personal touch of being able to speak directly to the owner, as this is often a perk of using a service like Airbnb.
Overall though it was a fantastic apartment and I wouldn't hesitate to book again!