I've never had a Cubano, but I had much your same reaction to Chef. In addition to the sinkholes in the plot, there were some ugly sour notes—for example, the scene when whatzisface gets the guys to help hoist the equipment into the truck. The Spanish he speaks isn't subtitled. Perhaps it is because he says something to the effect of "You can either load this equipment into the truck and get the best sandwich you've ever had, or I can call Immigration on you".