We've sampled quite a few of the restaurants in Caleta over the past two or three years, as regular visitors and following our more permanent move a couple of months ago. So far, though, we had not tried 15, but remedied that last night. Together with our son and his wife we wanted to eat relatively early in the evening, and although 15 was near empty around 6.30 ish, most tables had 'reserved' labels on! They offered to fit us in if we stayed no later than 8.30, which suited us.....and we certainly made the right restaurant choice! The four of us each had different main courses, and each was superb, perfectly cooked and nicely presented in a friendly atmosphere. I love steak but have given up asking for it in restaurants because they seem incapable of cooking it as requested. My son, however, did go for that choice, and it was spot-on...I looked at it quite enviously, but my pork fillet was very, very good too, fabulous sauce.
Eating out is so subjective, and opposite opinions can be equally valid, but all I can say is that 15 produced the best food I and my dining companions have had so far on the island, and we heartily recommend it!