Is it worth it?

I am currently an undergrad/high school student (dual enrollment and ap classes for college credits) and I am dead set on going to med school once I graduate college. I am looking at a variety of med schools, and I am seriously considering joining the Army Nurse Corps, as they offer free medical school. I have some prior medical experience from lifeguarding (will have 4-5 years of experience by the time I graduate) and I have an athletic build and athletic experience, but I do have very minimal amounts of chronic pain from scoliosis. Would they accept me into their program, and if so, is it worth it?