This is a great place to stay if you have an early morning flight out of OPO. Literally within walking distance of the hotel if your luggage situation allows for that, or you can arrange/reserve a shuttle trip for 2 Euro. Room was clean - no frills but very adequate for what I needed. I had to go to bed super early, so in order to have some white noise to cover up voices in the next room, I opted to open the windows to get some cooler air and a little bit of noise to keep myself drom really hearing the conversations. Worked like a charm!
This is also very close to the Porto Metro Aeroporto stop so very convenient for using the existing mass transit. I had planned to use that coming into the Porto Campanha station on the train, however due to rain and the awkwardness of my checked luggage weight - LOTS of coffee, wine, and chocolate in a carry bag with no wheels - I opted to catch an Uber.
One thing I would say is don't use the AirBnB messaging with this hotel. I don't think it is monitored. Overall, I recommend and will stay here again if I have an early morning flight.