First of all the location is fantastic and the house is very appealing. We did have some problems however that any renter should know about:
Parking - this is very difficult in Cadaques in August. There is a space for the house but it is only big enough for a compact car. We parked where we were told it was OK but ended up with our rental car being hit by another car and a parking ticket. Don't bring a big car or park at one of the lots elsewhere.
Cooking smells - the house is just behind a row of restaurants and the smell of cooking fish is in the air from mid-morning until late at night - for us it made the deck unusable.