What a lovely stay we had a Joaos place! Communication was perfect and he waited for us in a cafe next to the entrance of the house. The apartment itself is clean, very spacious and equipped with everything you need. The area is safe, a bit outside of Porto but well connected with buses (its around 30mins to the centre) with - what i heard - the best seafood-restaurants in Porto. The beach is very close if u fancy a swim or wanna go surfing.
I definitely recommend this place and will come back for future travels to the beautiful city of Porto :)