The appartement of Antonio is large and well furnished. We did enjoy the 70's design of the furniture in the living room. The location is great, the mall is 2 minutes walk and the food market just behind is vey convenient if you don't feel like cooking. The distance from the river is 20 minutes walk but you can also use metro and uber.
I find it a little hard to sleep because of the road traffic, but I am very sensitive. The rest of the family didn't complain at all.
Antonio is very flexible on the arrival and departure time, which we did appreciate to maximize our stay in Porto. On top of that, I think it is one of the cleanest appartement we have stayed in for many years with AirBnB.