Our startup is giving users the opportunity to learn by experiencing life in someone else’s shoes. I am not able to share more details yet, but I'd be happy to answer any questions you email to me at vedad.me@gmail.com
Vague in some ways is OK, but one thing you should spell out initially is where you have to be to take advantage of this. It sounds like an in-person thing, so unless you want the majority of applicants to be disappointed after investing interest, you should clarify that participants need to be in a certain area, e.g. NY, Seattle, SF, Kansas (good luck with that one...).