Rui was very accommodating with our arrival and departure times. He insisted on welcoming us personally.
The apartment has been recently renovated and offers a good view on the Douro. It is not obvious to find the place, but that allowed us to appreciate the quietness of it.
I would NOT recommend this place during winter time: we were very cold during the first nights (9°C outside, ~13°C in the apartment with all “heaters” on). Upon request, Rui kindly provided us with an additional heater and blankets, which made the situation more bearable — but still quite cold.
In the same fashion, the bathroom has no ventilation at all, which means you have to leave the window open or have the room completely damp. Even though we do not linger in the shower, for 4 people the hot water would go out in full.
I would definitely come back to this place during spring or summer — but not in winter.