We had a wonderful stay at Paula's place. She is wonderful and very sweet and helpful. She left a nice bottle of wine and a nice gift for my mother. We were delayed the date of our arrival and did not make it to the apartment until 1 am. However, Paula was there with all the information.
The location is just awesome. It is near Graca and 3 min walk willl get you to the main area. It is a walkable distance to lots of other places. The apartment is a typical Portugese apartment and not like anything fancy but is very practical. We were there only for nights to sleep and it worked well for us.
If you are 3-4 people or family with kids, it will work great and you will enjoy your stay. But be prepared to walk if you really want to take advantage of the location of the apartment.