We had an awesome stay! The appartement is located in the historical center, so you can walk everywhere. It’s perfect for 2 persons. There’s a metro station nearby if you arrive from the airport. Amélia is a great host, communication was easy and fast, she can give you some useful tips for your stay.
Only one negative point: the apartment is poorly isolated so you can hear ventilation noise from outside, and the neighbours can be loud sometimes.
Otherwise, the rest was great, Porto is a very nice city!