Communication with Daniel is very efficient. Our late check in time was not a problem, the flat is very well prepared for such a gueast as we. Even we haven't met him in person, there was an impression of being very welcome. He sent us even a guidemap with suggestions, what can be worth of seeing in Porto. The localisation is fantastic. To most of top places you can take a walk.
Daniel's apartment is very minimalistic with everything what you need to have a pleasant stay for two. The bed is comfortable. It is a clean place with lovely view to the green backyard. I would suggest those one, who are coming in colder time to take warm slippers with you, as the floor is super cold (it is the beauty of tiles).
I definately recommend Daniel's place.