Miguel is very responsive and gives good tips for activities. When arriving Paulo has given us the keys and shown us around. He also gives some tips for restaurants; which areas are cheaper (as it is not that touristic). Paulo's English is not great, so communication was difficult. Still, there is a map which summarizes everything, so it was still useful.
They offer a transfer from the apartment to the airport which is a bit more expensive than the Uber, but could be useful when the flight is later than check-out; then the luggage can be stored after check-out. This is quite practical for visiting Porto one last time without having to drag all your stuff.