It's not as bad as it sounds. It's targeted toward students that are tech-savvy. You get a free trip to an international destination that you otherwise most likely wouldn't have a chance to travel to with people that share your passion.
It can be a lot of fun if you know what you're signing up for.
I know her and have talked over FB to her personally. Her experience was terrible and can only be attributed to the pressure Samsung was putting on their PR people. Being one of the main sponsors of the olympics is expensive, so they were most likely throwing a lot of pressure around and people weren't able to think things through... too bad.
I'd love to know what labour and Visa laws they violated if they were forced to work in a stand. It's very clear that they were going to report on the products, not work for Samsung for absolutely nothing!
It can be a lot of fun if you know what you're signing up for.