We had a very good experience staying at Sandra's apartment. It's a cozy place with a practical layout, and the balcony is great for the afternoon/evening sun even in April when it's not so warm yet. The place is nice and quiet and the bed very comfortable so we slept very well. We loved the location of the apartment! It's close enough to the centre so you can walk to many sights, and for stuff that is further away the metro, bus and tram are very easy to get to (we were very impressed with Lisbon's public transport!). The area itself is nicely non-touristy with lovely local coffee places and a large supermarket . Contact with Sandra was easy too so we had a super smooth stay in Lisbon.