I went to Beunos Aires specifically for the cuban sandwich. I've had the real thing in Florida many times so I know what its supposed to taste like. I was not impressed. The sandwich isn't bad but it doesn't stack up at all to the cuban sandwich from Buchi Cafe Cubano on 38th and Clay. They season their pork differently and to me that's what made a good cuban great. I'd still recommend it but only if you can't make it to Buchi where its far better.
Best Cuban Sandwich Denver 2011 - Buenos Aires Pizzeria
While Buenos Aires Pizzeria is an Argentine restaurant, members of the family that owns it are from Cuba, and they recognize that the key to a really good Cuban sandwich is the bread. Cuban bread: a long baguette of white bread that's similar to French bread, but richer, denser and chewier, thanks to the lard that goes into the dough. For its Cuban sandwich, Buenos Aires Pizzeria slices real Cuban bread, then stacks it with ham, fat-laced roasted pork and Swiss cheese, and presses it flat to the griddle. Once the cheese is melted, tangy flat slices of pickle and plenty of mustard provide the finishing touches.