We had a great stay at Antonio's apartment, which actually looks nicer than in the photos.
We spent a little over a week and we had everything we needed, the apartment was very well equipped: we could prepare food, do our laundry, the bed was comfortable.
Since we were both working full time during our stay, the desk was a lifesaver. The internet was a little slow at first, but Antonio was very helpful and responsive and that was no longer an issue afterwards, so I would definitely recommend this place for a longer stay with remote working.
The area is nice and quiet, with supermarkets, cafes, a delicious pizza place within walking distance.
All in all really loved Porto and staying at Antonio's and really hope to return someday.