I actually had just 2 minutes to book a place for my mother (85 years and her much younger friend 78 years) in Lisbon. The two traveled by car through Portugal but in Lisbon they did not find a hotel. They stayed one night in a Youth hostel. I had to find a nice place fast for them. I chose Gonçalo's apartment... the two ladies loved the place. But they loved even more the host that was great and gave them lots of good recommendations. One was a free concert of the 1st and 2nd symphony of Beethoven in the park.
I highly recommend Gonçalo and his place.