The apartment is well located and it matches the description and photos well. Please note there is no toaster, just in case. Restaurantes are nearby as well as transportation (Metro and buses) and the beach, all within 5-10mins walking distance.
Checkin and communication is with an external company, just make sure you get their confirmation of the check in time. They can meet you at the apartment or you can pick up the keys but we chose to meet them there.
Matosinhos is a great place to stay if you do not want to be in crowded and touristic Porto but near enough to visit everyday if you want. If you land in Porto (1 change) you can take the metro and you will be 300 mts from the flat. You can buy day or 3 day public transport passes which are very convenient. All restaurants are good near the apartment and just be ready to enjoy fresh fish and seafood. Make sure you make a reservation. Make sure you also enjoy all the types of Oporto: white, ruby and tawny ....fantastic as well as the Duoro red wine.