Davis's apartment near the river in Porto is the best place we have stayed in almost two months of travel in Spain and Portugal.

Pros:
Comfortable, large (more or less king-sized) bed
Great location
Outstanding view
Quiet
Fully equipped.
Wonder host who knows his way around and does a great job introducing guests to the apt and the area
Very mild con:
Mediocre, somewhat flakey Wifi.
Next time I am in Porto, I will make sure I get the same place. I would unhesitatingly recommend it to anyone. Well worth the cost.