While Joao was not present at our arrival, he was available over the phone and sent someone to let us in within minutes despite us arriving ahead of schedule. We also asked for a second set of keys which he provided, which was much appreciated.
The flat was very comfortable, with all the appliances you could ever need. It was well sound-proofed and we could not hear any of the neighbours, it also stayed nicely cool despite temperatures outside reaching 36 degrees.
The area is ideally located within a couple of minutes of the Bolhao station and within 7 minutes walk from the Trindade station which is on every tube line in Porto, we could not ask for better.