Yes, it is expensive, but all good restaurants are expensive in Punta. I've lived here 13 years and Oliva & Sal is by far the best in the neighborhood. Far-far much better than the big restaurant about a mile away closer to the big hill.
We order Ceviche, he only will serve it if the fish is fresh. It's incredible. If not that, then Shrimp Ceviche. If the parrilla is going, look out, incredible.