We stayed at Tomas' place for 4 days in February. Overall, we really enjoyed our stay, thank Tomas and his friend Tomas who greeted us for hosting us and recommend this place. The apartment is a rental not someone's home, and matches the description perfectly. It's located on the Alfama hill right next to the Castle and the Sun Gate viewpoint, with numerous cafes, restaurants and minimarkets nearby. Rossio is about 15 min walk away. Perfect location for exploring Lisbon.
The apartment itself is very pretty and is in a traditional Portuguese style. It offers spectacular view. All the facilities are in place, it's clean, the WiFi is good.
There were several minor inconveniences - they didn't impair our stay much but might matter more for others. Firstly, it's noisy - there's a dance class/studio of some sort at the floor above the apartment, and a construction just across the road. All of this however is a daytime noise, so night sleep quality is still good. Secondly, there's a steady sewage smell from the bathroom. Finally, there's only one electric heater so we had to choose which room to heat, and the high light in the bedroom did not work.
Obviously, these are all little things that aren't very important if you're there to explore the city. Tomas' place is great for that and is a superb value for money.