Fantastic place to stay. Central in Porto - very clean, quite spacious. The place is walking distance to just about everywhere and you can get an Uber door to door anywhere in the city for 10 or so Euros.
I was working from this apartment for a month in September & October of 2021. The internet was fantastic and the place more than accommodated my work needs. There were a couple of standard maintenance issues throughout the stay (A clogged drain for example). Paula sent someone the same day I mentioned it to take a look and fixed it as soon as possible. Really responsive host and it was a pleasure to stay at this apartment.
Be wary however if you are a light sleeper. On more than half the nights during my stay there were young inebriated people shouting and partying on the street below (Likely on their way home from a night of revelry). There were also on several occasions noisy neighbors staying in the complex for 2-3 days. All this perhaps should be expected staying downtown in a major city and is solvable with headphones or earplugs. 5/5 would stay again.