Joao is a very good host. The communication with him is very easy. He replied to all our questions. Before the trip, he sent all information we need. Arrived at his place, he welcome us with pasteis de nata (they were so good!) And he gave us all details we need to facilitate our trip. Joao also gave us good address for restaurant, best place for porto sightseeing.
The appartment is very nice and closed to the historical center (about 15 mn walk).
We have really appreciated our trip in Porto thanks to Joao.