We loved our visit to Daniela and Lisa's place. The flat not only has the sunroom off of the master bedroom, but also a little sun porch on the other side of the flat, too, so it gets lots of natural light. And the sunroom itself is huge, which provide a lot of extra space for our kids to play. Plus the view over the city from there is amazing.
We also liked the location - it wasn't right in the middle of the tourist areas, but close enough to walk to them and also close to a metro station and bus stops if you don't feel like walking. There's also a supermarket and Bolhão Market close by - we had great lunch of grilled sardines and squid at Bolhão Market, which is temporarily located about a block away. And it's also 2 blocks from Rua Santa Catalina, a famous pedestrian shopping street.