My boyfriend and I stayed at Ricardo’s place for 3 nights and it was a good base for exploring Lisbon. It’s a pretty easy 25min walk into the centre and 10mins walk to the metro which connects the city/airport really well. The apartment itself is basic and the bedroom is very small but it had everything we needed for a short stay. This wasn’t a big deal for us but as others have said the stairs up to the apartment are very steep. The shower hook was also broken which means you need to hold the shower head but the pressure and heat was perfectly fine. Overall we had a good stay!