I've never used one of those programs, mainly because I always wanted the option to choose where I work. Suppose during your clinicals you find yourself in a specialty that you really love, but isn't something you can do with your current employer. When you graduate, you will have to wait until your obligation is completed before you can pursue your goal, or pay them the money back so that you can be free (and there are tax consequences for pursuing this course). However, if you are 100% sure that you will stay with your current employer after you graduate, then I see no issue with taking the stipend.

Hospital Based Scolarship
I don't care if I have to work someplace the hospital places me. I need the help and also want to work.
I plan on doing this because my hospital will do the same and I will have to give them only 2 years to repay them. Yes I said only 2 years.
This is my opinion and only mine. It out weights my cost if I have to pay for it myself, it insures me that I will be working while I am in school and insures me a job once I have graduated. After that 2 years I can switch if I am not happy with the situation.
But I will have reached my goals and with help that I need.
No I don't know if they will keep their word at placeing me where I'd like to work, but I can endure it if necessary.
However I beleive they will keep their word because I will have to sign a contract, and it will spell out what they expect of me and what I will receive from them. Since it is a contract I don't think they will go back on their word. And of course I will read the fine print before I sign on the line.