The apartment itself was very modern and spacious. The staff running the airbnb were responsive. The apartment was nicely located in Porto, it is a few minutes walk to the popular Sao Bento train station. If you are using uber to navigate to the apartment, your driver may be a bit confused because the apartment door is hard to find. The master bedroom (alone on the top floor) does not have a door so you are able to hear everything from anyone else in the apartment. There is one big staircase (maybe 20 steps) you need to take, so be aware of that, in case you have large luggage. There was an elevator in the building but were told not to use it with no reason. It would have been convenient for luggage.
Our host who greeted us, Vitor, provided us useful information about Porto and a map which was very useful. Thank you for this information.