The place is located in the strict city center, very close to most of the city's best attractions. We really appreciate the self-checking option as we arrived later in the evening.
The place itself is very roomy, with a long corridor connecting the main living area with the bedroom. Windows go out to a quiet yard which we didn't at the first spot when looking at the photos.
Being in Porto in January, we found the place to be slightly too cool. There are air-conditioners that warm the place when turned on, but the walls are solid stone so when we turned AC off during the day away, coming back the place was quite cold.