We really enjoyed our stay!
The flat is spacious and charismatic. It's located at the center of the downtown, so there was no need to use the metro line a single time as we just walked down to explore the city. It is well equipped, it has all you need to have a nice time in Porto. If you like to cook this flat is a must! Deli and André are super-hosts, really kind and friendly people. They took us to the wine cellars and to a Port wine tasting event.
We highly recommend it!