I stayed there for a week while I was on a workation in Lisbon. It is indeed a good place to work in the morning and explore Lisbon in the afternoon since it is only 20-30 min walk from the main attractions.
I was truly surprised the kitchen and bathroom is always super clean :)
Also, there are more rooms rented out I felt almost like renting my own place :) Not much interactions with others.
Would definitely recommend!