Nice appartment with a very good and comfy bed! Hosts are super communicative and attentive, they even have some guide book prepared. Place is very well equipped, definitely suited for a prolonged stay.
The area, especially towards Martim Moniz, was a bit sketchy at night, many homeless and addicted people. We had no real problems, but it might be not the best option for sensitive people. Other than that great location, everything you want to see is in a walking distance, great connection to public transport