Overall, I think this experience was more of a camp than a program. I expected a full immersion experience, but instead I found it to be like a camp. In many ways Tico Lingo delivered: homestay, market, and classrooms were places where I was forced out of my native language into something new. However, most of the time I was surrounded by others who came to this school not knowing any Spanish. Combined with the many activities also in English, I found my immersion to be underwhelming, but some of the experience and people I'll never forget.
My biggest piece of advice would be to sign up for this program if you are looking for a fun, activity-filled way to spend your summer. Don't come if you're looking for more than 20% of your day spoken in Spanish.