The flat is super well located in Porto, close to everything. There are both train and metro stations nearby (600m) but we didn't need to use for our visits as everything was pretty close to the flat + we had a car for longer distance visits. Parking is expensive so if you come with a car we warmly recommend to use the host's parking offer at 6 EUR per day.
The flat itself is really nice. Very luminous. During the day there are a lot of people passing by but at night it's quiet and you won't have issues sleeping properly. The shower stall could need a renewal and the air dryer was missing the on/off button. Otherwise everything was OK with the flat. There was no washing powder so we had to buy ours to use the washing machine.
All in all we really enjoyed our stay in this flat and can recommend it if you're going to visit Porto and want to have everything available near you.