This place is fantastic and we highly recommend. The place itself is cute and home-y, has great amenities, is very comfortable, and working with the hosts was extremely easy. It's in a fantastic location, in the heart of Lisbon's historic center, and a short walk from metro stations and sightseeing. For everything we wanted to do in Lisbon, this was a perfect location.
The only small downside to note is that it stays very loud in this area until 2 or 3 in the morning. There were "parties" in the street with people yelling very loud and talking right outside the apartment, even on Monday and Tuesday nights.