Thanks to everyone who helped us find great food in San Juan. La Cueva Del Mar in OSJ opened 3 weeks ago and is a great place for wonderful seafood/fish at a reasonable price. Both Jose Enrique and Santaella in Santurce were outstanding. Marmalade on OSJ offered a lovely setting and good food. St. Germaine had great salads and sandwiches for lunch and Cafe Puerto Rico's mofongos were delicious.
We loved staying at El Convento but didn't think their restaurants were nearly as good as the ones I just mentioned.