We had an excellent stay at Ricardo's place. The flat was spotless clean, very modern and stylishly furnished, with all amenities, a very well furnished kitchenette, an amazing shower and an air conditioning system. The entire building has been completely renovated and it all looks brand new. On top of that, it's right in the heart of Lisbon; it's literally a couple of minutes away from restaurants, metro station and tram/bus stops, bakeries and shops. The train station is 8 minutes away (walking distance). Despite being in a central location, because the flat is in a narrow street and at a high floor (there's an elevator), it manages to be very quiet at night so we could also sleep very comfortably.
Highly recommended !