When we arrived at the place Fred showed us everything of the apartment and told what to do in Porto. He is very helpful and even drove us a few times to the supermarket!
The apartment is smaller than it seems, but there is still plenty of room for 4. The terrace is shared with about 5 other apartments, though has enough room to comfortable lay in the sun by the pool.
To go see stuff you can take an Uber for 10 minutes to go to the city centre, which is very cheap in Porto.
All in all we had a great time in Porto and recommend this place for staying here!