Everything about Diaz 15 is superb. We were a family and we booked the superior 3 bed suite. The owners welcomed us on arrival and spent about 30 minutes with us telling about everything in the area. We arrived late afternoon and they had booked a restaurant for us - Kitchen Windows was brilliant and only about 100 metres from the guesthouse.
This property is located right on the beach, our room was superb as was the view from the balcony. They do not have a dining room and breakfast is cooked and served in your room. And what a breakfast - fresh fruit, cereal and a continental or cooked breakfast as you wish. The ladies who cooked breakfast were stars. One of our party is coeliac and this also was no problem. One of our party had a "big birthday" and a champagne surprise breakfast was no problem and at no extra cost.
I unreservedly recommend Diaz 15 and we will return.