Do you work in a val practice at an accounting or specialist valuations firm? I've never taken the ABV, so I can't comment on the exam, but I work in Corporate Finance, so I know and work with a lot of people in the Valuation practice at my firm. In my experience, ASA and CFA are the only widely-respected certifications in this field, and most people don't really consider the ABV worth much. (the CPA itself is, of course, respected) I guess it's kind of the opposite of CFF vs CFE in Forensics.
Obviously, if you're looking to transition into valuation, it's a bit different and ABV could be a relatively quick qualification which could help you.
AUD - 79
BEC - 88
FAR - 89
REG - 80
Manager, Big 4 Corporate Finance, CPA (WA)