I was fortunate enough to be accepted to some private and state schools including my own (University of Washington). I was also accepted to USUHS. I think USUHS is a wonderful school and provides a great opportunity as a medical student. I spent several months examining USUHS and am probably not going to go there.
I am married with children and look to the seven years of payback. I know the military will move us every 2-3 years, some of which may be in Germany. Also, I may be deployed for up to one year without being able to be with my family.
My wife is interested in going back to school to obtain a pharmacy degree at some point, she would not be able to do that if I chose to go to USUHS, because I could be deployed or moved during her studies and we don't want to live apart. For my children, I think it would be better for them not to have to move so much.
Most of my reasons are based on family issues, if I were single, I would probably go USUHS. If I am interested later on, I could always join up (I could be a doctor and my wife a pharmacist) for the military.
Good luck, and don't rush the decision, you have until May 15th.