I stayed in Cláudia and José's place for a month. It's just next to the metro, supermarkets and a coffeeshop where you can get a nice pastel de nata.
The apartment was clean. They cleaned the public spaces daily. The hosts are very friendly and responded quickly to my messages.
My room was on the backside of the apartment, so I didn't have a lot of traffic noise from the street. Although I did sleep with earplugs, 'cause I'm a very light sleeper.
I work remotely, so i often worked from the apartment. The WiFi was stable. I liked the big window in the room. There was a lot of natural light coming in. The (1-person) bed was comfy as well.
Would definitely recommend!