Central enormous apartment, good veranda to rear and walking distance of everything, with close public transport.
Apartment is huge, well quipped and very well decorated. All communication excellent and checking/out very easy. Generous host lest welcome gifts and gave a very good introduction to the house and neighbourhood. We were there for a festival weekend and it was very busy so a bit noisy, but this is the city and it was a party so to be expected.
Would absolutely stay again next time in Porto.