I would definitely recommend this apartment; very clean, great location and with everything you need for a weekend break or longer trip (we stayed for 1 week).
The apartment was clean and spacious with big windows making it bright and airy.
The location was perfect to explore Porto, with shops, restaurants and cafes very close by and also only a short walk to other parts of the old town and down to the river.
We had no problems at all during our stay but Mario checked in with us to make sure we had everything we needed and was easy to contact and communicate with to arrange the check in and check out.
Thanks very much Mario, I will definitely be recommending your apartment to friends.