Nice apartment, close to the center, on one corner of the house there's a bakery on the other - really good meat sandwiches.
The apartment itself is well equipped, there is a washing machine but it is really dirty and has a bad smell. When we checked in there was a slight smell of cigarettes in the apartment. Also there is no soundproof, so you'll hear all your neighbors plus there is a reconstruction in the backyard, so it's hard to enjoy the terrace. Also we had some inconvenience with closing/opening bathroom doors. Other than that everything was good including communication and location. I would recommend this apartment for a short stay in Porto.