Rafael's apartment was a great base for exploring Lisbon. There are a total of four rooms in the apartment, so you'll almost certainly have neighbors, but there was never a queue for the bathroom or kitchen or anything. The apartment is a short walk from a metro station (and Lisbon's metro is phenomenal) and close to several of the popular sites within Lisbon. Rafael was very kind and communicative, and stops by the house regularly to clean and check on things. Would recommend, especially if you just need a nice place to sleep and plan to be out exploring most of the rest of the time!