Has anyone done a Tempo BA/BS at Walden?

[wow]

I already work in health education but do not have CHES certification (the main professional certification for health educators). If I want the cert, I need to get a bachelor's or master's degree in an approved health education program, or rack up 25 quarter credits in certain health education areas. I'm considering a number of options, but one is Walden's self-paced BA in Health Studies with Health Education concentration, which Walden advertises as making the student eligible to sit for the CHES exam.

Since I already have experience in health education and many many many credits that should cover most gen ed requirements and possibly some major requirements (I have a BA in an unrelated area and credits that I have acquired from other schools as well), I think I should be able to get through the requirements of the program in two terms or less--if I can control the pace.

But I'm wondering if there tend to be delays on Walden's side. Can a student start on the next competency as soon as they're done with the previous one (even if papers are still being graded)? Can a student enroll in multiple competencies at once? Are paper textbooks required and, if so, does that mean wasting precious days between starting a competency and receiving the needed textbook?

Also, do the Temp bachelor degrees tend to be more test or paper heavy?