LOOK FOR NOTHING ELSE! I stayed here with 2 friends of mine and all three of us believe this is one of the nicest Airbnb rentals for such a great price that we have ever been to.
It is located in Foz, a little beach area/part of town located just a few kilometers from downtown (the uber price is 6 euros from downtown to the Airbnb.)
The apartment truly is right by the beach, along with all sorts of unique stores, restaurants, and an all-organic supermarket just a 1 minute walk away that became part of our daily routine!
The kitchen is very well equipped, lots of seating is available in the apartment, and the rooms were very spacious.
I will be coming back to Porto for sure, and I will look into this Airbnb again.