Paulo was a fantastic host and we greatly enjoyed our stay.
Paulo was waiting at the apartment to meet us, even with our flight landing later in the evening. When we arrived he helped with our bags and took about 20 minutes to mark-up a map with us and provide tons of useful suggestions for sights, transit, and food. Plus, prior to arrival he gave us detailed directions to the apartment, including very important information about where the pubic elevators are.
The apartment has stunning views of the Tagus River and much of old Lisbon. The views of sunrise from the back balcony were an amazing way to start our day. And since it's located in the Castello, you start each day inside the walls of a castle, with the tour of the St. George's castle grounds just steps away (I highly recommend the castle tour early in the day for dramatic views)