I had a great time at Joana's place. The apartment is located on a hill so there's a bit of steep walk to get there (that's often the case in Lisbon though) but you can always take a cab if walking up ain't for you ;) Other than that the location is really nice; a metro station, a couple of restaurants and a supermarket are located just around the corner. The apartment also has pretty much all you need. The only thing that was a bit annoying at times was that you could hear the neighbours quite well so if you're a light sleeper this place might not be for you. Other than that I had a wonderful stay and Joana always helped me with any kind of questions I had. I would definitely recommend her apartment for your trip to Lisbon!