AmanNeedsaName

How do you feel about programs like Rosetta Stone or websites like duolingo?

Completely unrelated follow up. My brother is doing international business with a focus in Spanish at university. He's having a fun problem where a lot of the Spanish he knows, from working in restaurants, is filled with slang. Just curious is you have a "teaching" Spanish vs a "home" Spanish. He says aside from school he uses his "home" Spanish in the majority of his use.