I looked over the eligibility requirements a little more in depth.

https://www.apbm.org/pages.aspx/cbmeligibility

Basically, you can't sit to take this exam unless you already have at least a Bachelor's degree. With a Bachelor's you need a minimum of 4 years work experience. For those with a Masters, you need a minimum of 3 years of work experience.

The 15 upper level credit recommendation WOULD be good for those pursuing a second degree, or those needing foundation courses before enrolling in an MBA program.

I think the 9 graduate level credit recommendation is what makes this exam worthwhile. Definitely verify with you school if they will accept it, but if I were pursuing an MBA I'd probably shop around until I found a good school that would accept the credit in the first place. Grad school is expensive, and I can see some serious money savings with this exam. At $1400, that comes to about $156 a credut hour. Thats great for grad school.

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CLEP exams passed:
Management, Accounting, Marketing, Macroeconomics, Microeconomics

DSST exams passed:
Human Resources Management, Organizational Behavior, Statistics, Management Information Systems

Earned:
B.A. in Business Administration: Technology Management (magna cum laude) from Saint Leo University

In Progress:
M.S. in Leadership and Business Ethics from Duquesne University (24 credits completed, 3 credits in progress)