Although we didn't meet Sandra, we must say that Sandra is a really great host. She answered to our question very quickly and gave us the information we needed. She arranged that we could check-in in the middle of the night and that the apartment was well prepaired for our arrival.
The apartment is perfectly situated, very close to the Praca do Comercio. It is very spacious for two people and well equipped. Everything was tidy and in good condition. The street is quite noisy, but with the windows closed we didn't here much of that noise. We sleeeped very well in the comfortable bed.
We would highly recommend Sandra's apartment.