We had a fantastic stay in Helena's apartment. It is how it is described in the listing, with essential amenities close to the doorstep. The location is very close to Terreiro do Paco metro station and a moderate walk from Cais do Sodre, which turned out to be unexpected benefits.
Helena was a pleasure to deal with, both in person and during our interactions on AirBnB. She made us feel welcome at the apartment and provided us with useful tips to travel around the city.
While there is construction going on further down from the apartment, the noise did not affect us. Once it is completed though it will be an added plus, though it did not stop us from enjoying our stay in the apartment.