We booked the 'Suite with Kitchen & Balcony' for ten days and had a great time. We can wholeheartedly recommend staying here.
Communication with our hosts was great. On arrival, we were picked up at the airport free of charge and our hosts put us in touch with somebody to rent a car last minute.
The room itself was very much to our liking: spacious, with a great bed, nice bathroom and a big balcony, where we enjoyed having breakfast in the mornings. The kitchen has everything you need to prepare and cook small meals (microwave, fridge, two stove tops, pots and pans, ...). We had hot water and did not have to worry about electricity (according to other listings, it is sometimes metered on the island). We were also provided with pool / beach towels. Room service came every other day, which was perfect for us.
The guesthouse is located in the Saliña district. There is a supermarket within walking distance ('Van den Tweel', roughly 15 minutes by foot, though you need to cross a busy road to get there). You can get freshly baked goods there in the mornings. There are also lots of shops and restaurants around, though we mostly ate elsewhere. We recommend also checking out the district in the evening / at night when there are food trucks here that offer affordable, very tasty food at night. As everywhere on the island, there are lots of dogs around barking at you if you are out on foot in the neighbourhood. That's why we preferred the car over walking.