I had lunch there in June and it was excellent, but somewhat expensive for Puerto Plata. It is located on Avenida Luis Ginebra past the courthouse and the traffic circle that is near the baseball stadium but before the headquarters of the Policia Nacional.
It is an old house that has been converted to a restaurant, has walls surrounding it with a large gateway to enter.
ETA: LOL! Lindsey and I had lunch there together! We agree about the place.