Cláudia gave us clear instructions even though the taxi couldn't come and collect us since we were delayed and arrived in the middle of the night. The door has a very secure code lock. The apartment is really cute, with a great decor and lots of little nice touches. Cláudia was lovely, she came to meet us and gave us some tips. I would definitely recommend this Airbnb! Thank you! Oh and location is GREAT! Right in the centre of Porto's little streets and not far from the main station or the river.