The apartman is exactly like described. It is clean, quiet (the street is very quiet and you have an impression that you live there alone) and well-appointed. Beautiful old furniture - amazing. If you rent a car it is a free parking place just in front of the house.
The location is fantastic ! 3 minutes walk to the riverside, where you have an amazing view of the Porto. It takes about 20-25 minutes to reach the old Porto center (across the fantastic Luis Ponte Bridge).
Although we did not meet Rui personally, he was in contact with us to ensure our well being. All the time he was ready to advice or help!
One negative thing about the apartment is the scratching old double bed in one of the bedroom. But it was not a problem.
I strongly recommend to book this apartman! Thank you Rui.