We've spent 5 nights in Rita's apartment and it was great! The apartment is in the heart of Alfama (oldest part of Lisbon) so you can definitely feel that old town vibe. There are lots of coffee shops and bars around. Also you can buy cheap beer just around the corner.
The apartment itself is absolutely great. Clean, modern, cozy. Just like from the pictures. And in the evening you can just sit in the living room with open (huge) windows and just listen various city sounds like for example live music playing somewhere close by. We didn't met Rita, but we communicated a lot before our arrival. She was very responsive and friendly.
We definitely recommend this place for everybody who wants to explore Lisbon.