Maria's apartment is absolutely perfect: centrally located in the very chic Chiado area, walkable distance from/to almost every famous spots in Lisbon. There are a dozens of really good restaurants nearby and a few amazing pastel de nata places, I didn't have a day having at least four of them :). Maria was very, very helpful, she showed us around the flat, explained how everything works and gave us good tips on where and how to go. Also, she let us check in a bit early and check out a bit late for which I'm really thankful. I highly recommend this flat!