The location is just perfect! You are right in the center at a walking distance to many attractions. Maria is very easy to reach and eventhough we haven’t met her in person, she was always available.
You feel very secure in the area.
There are a few stairs before you get to the lift so pack light :) And due to the narrow streets of Porto, daylight that gets into the house is very limited.
Overall, I would definetly recommend the place to everyone.