The best pro for this Airbnb is the location. It's in front of the famous Bolhao market and near all of Porto's main attractions. If you're all about location, this is the place.
Otherwise, the cons are mainly 2: a. The check-in process was complicated: you had to pick up the keys from an 8-minute walk away (with bags, an elderly travel partner). It wasn't comfortable. b. it was missing basic things almost seems like they just have the apartment as a cash cow without an eye for details. For example, laundry detergent, the soap/shampoo/conditioner was watery and 3 in one, the upstairs pillows gave us neck pain, and the temperature between upstairs and down wasn't balanced.
In my 10-day European trip, we stayed at four shared apartment and this one was our least favorite one. If I had to go back, I'd pick another place.