Miguel give us a warmth welcome. He sent us an email with his recommendations (with some places to go and things to do in Porto) that were very interesting. The flat is just the same as in the photos and very clean!
The only problem we had was that it seems to be another airbnb apartment next door. The same weekend we chose to enjoy the apartment there was an English teacher who taught English by Skype and we could perfectly hear all the lessons from 7:00 am to 10:00 am...Saturday and Sunday (a pity).