My family and I enjoyed our stay at Sonia's place.
We felt that the apartment was located in a wonderful area, and close to all of the sites and action that Lisbon has to offer.
The apartment's location also allows a given traveler to walk to a few sites that are within a few miles, which my family and I did.
However, we had real issues with the shower. It was either way too cold or scorching hot; Sonia was kind enough to give me some prompt advice on how to adjust the water heater, but, unfortunately, it did not make much of a difference.
The apartment definitely had a complication here and there, but like I said, Sonia was there to assist.