Tidy apartment in a good part of town. There's a supermarket almost next door which is very useful, lots of good restaurants and bars, cool shops nearby and it’s fairly convenient for most of the major attractions. We enjoyed our time in Porto, but did have a few issues:
1. There's a nightclub very close which is amazingly loud until very late. Don't expect to sleep well. You can hear the neighbours rather too clearly as well.
2. It's quite sparsely and impersonally furnished; it feels more like a hotel room than the usual owner-rented AirBnB apartment. The 'house rules' is just a list of 'don't do this'. Not exactly welcoming.
3. It does have a balcony, but it's at the back overlooking yards and neighbours' windows. If you like to be in the buzz of city life, this isn't it. In fact, it doesn't have a single window facing the street.
4. We almost got trapped in the hallway when leaving to catch our plane at 5.30am, as the outer door had been locked by another tenant. Not a great experience (but thanks to the man upstairs who we managed to wake up...)