Maria was available and helpful, check in and out was simple and efficient and she speaks English very well. The flat is clean, cute and ideally located tourism-wise, in the historic center of Porto, which makes almost everything accessible on foot.
However, the streets below the flat are very animated at night, so don’t expect peaceful nights. We also had quite heavy construction work going on both sides.
The building was divided into studios in such a way that there is no proper separation between the flat and the common stairs: with loud neighbors living with their doors open, it kinda feels like having roommates. This last aspect should be taken into account regarding the price.