I stayed with my girlfriend one night while passing by and doing the Passadiços do Paiva hike. The location is a short drive to the hike and the village has a supermarket and a few restaurants to eat.
The accommodation is like a B&B (Bed & Breakfast).
The staff are doing a reasonable job, but seem overwhelmed at times with the amount of work needed to keep the place running. The humidity extractor in our bathroom was not working. Without a window in the bathroom, this created extra humidity.
We stayed for two more short-term rentals on our trip. Both required our COVID-19 proof of testing and vaccination according to the current health regulations. This didn't happen at our "Quinta de Alvarenga" stay. Also, the other two places had a better value for money ratio.