Arantxa's place is a sweet little apartment that was perfect for my little family - my 1-year-old infant, my wife and myself. It had everything we needed as a family with a baby - a crib, a highchair, two bedrooms and a well-isolated living room, in which we could hang out after our baby was asleep. The whole apartment is new and clean, the furniture is in great shape, the kitchen had everything we needed to cook, the shower is great.
The few down sides are that the curtains in the bedrooms don't block the light from outside completely, but nearly. The TV is pretty small but we did not use it. Location-wise, the apartment is a 5 minute walk from the main beach, which is on one hand pretty close, and on the other, it's not right on the beach where all the restaurants are.
All-in-all, we had a great time and I highly recommend this place!