I stayed in Rui and Elsa's apartment for 5 nights while I was moving to a new house on November 2020. The apartment itself is cozy and well decorated with some details revealing attention and care. There are heaters in the winter (although not much powerful), water is hot enough, the internet connection is very good and the beds are comfortable. Communication with the owners is very quick and effective.
On the other side, spaces such as the kitchen and bathroom lack a more thoroughly cleaning session. Additionally, some equipment in the bathroom is worn-out and not up to the rest of the apartment.
All in all, Rui and Elsa's flat is a good place to stay in a typical Lisbon neighborhood. Although the decoration shows care and contributes to the apartment coziness, it's advisable to improve the cleaning status of both the kitchen and bathroom and to replace some appliances.