My wife and I had a lovely stay at Bruno and Patricia's apartment.
The apartment is very comfortable, clean, and has lovely furniture and decorations.
We really enjoyed the location, not smack in the middle of the main tourist drag but in short walking distance to everything. The apartment is very easy to get to when arriving in Porto for the first time, and if public transport is not your cup of tea, the service offered by Bruno for airport shuttle is easy and reliable. There are many excellent restaurants and cafes to choose from in the vicinity of the apartment as well.
We would definitely stay here again when we return to Porto!