My wife and I were lucky to pick Polo Sur as the place for the first lunch of our vacation. Lucky, because we didn't quite get the opening hours: mostly the restaurant was closed when we walked by.
However, the menu as advertised on the street (arroz rojo con cangrejos) turned out to be delicious! The waiter said he wouldn't speak English, but he did well enough to get over all the parts where my Spanish wasn't enough. My lactose intolerance was taken seriously and checked from the kitchen. The waiter was good, friendly and fun.
I would definitely recommend this restaurant!