This place was the best value for money during our whole trip around the south of Italy. It is simple but has everything you need (except salt, had to ask some neighbours for it right while cooking pasta haha).
Keep in mind that the house is located in the upper part of Castro, so you have to go down for the beach and then back up again. Don't be discouraged by the size of the town, it has Zinzulusa cave and an archaeological museum with the best guide ever. There also plenty of places to eat out both at the seaside and on the hill — Loredana gave us some really good recommendations.