If anyone is looking for language classes in South America, I would highly recommend San Blas in Plaza San Blas in Cuzco. We had Jossie, who was an awesome teacher. The classes were cheap ($90 USD) and the homestay was a great experience. We had a wonderful family that took the time to explain things to us. They were very interested in our families. Bring photos of your friends and family if you choose to do this. We´d also recommend bring a gift. We forgot to, but bought some flowers in town.