Sara and Sergio's apartment is beautiful, clean, bright and comfy. It's extremely well located for bars and restaurants, as well as for the sights of Lisbon - and the area's lovely to walk around. As it's a lively area, there was a little noise on the Friday night, but we weren't disturbed by it.
We found Sara to be a lovely, considerate host. We'd definitely stay in the apartment again if we were in Lisbon, and would wholeheartedly recommend it to others.