The room is very pretty and cozy and the location is very central! Just the fact of having to pick up the keys in a different location, quite far from the one of the room, was a bit of a constraint, but, at least you can leave them in the room when you check-out.
Additionally the room and bathroom were cold, but electric heaters are available. We didn't want to leave them on all night so it was very crispy in the morning, especially the bathroom!
Also, we would have expected a couple more products in the bathroom (shower gel/shampoo) and maybe in the kitchen as well (like coffee or smt), since we arrived at 11 pm and couldn't get anything from stores.
Nonetheless we liked it and had a great time in Porto, we will come back!