Nice place, clean and with good facilities. Communication was swift and correct.
Location is good: walkable to downtown (around 2-2.5km), alternatively a bus stop is just 120m away.
Pay attention if you arrive by car: there is a street with fee parking nearby but this was always fully occupied during our stay. The area has paid parking from 9am to 6pm on weekdays and from 9am to 4pm on Saturday with a maximum duration of 2hours. No problem for us as we were there in the weekend.
Conclusion: a good base for visiting Porto.