I decided I'm not going to take it this time. It's pretty much exactly like the BCPS ID materials (a little more detailed, but not even much). I honestly think it would be easier than BCPS, but I'm not sure it's really worth the $600 test fee and yearly license fee because the material really seem to be any deeper, really, that BCPS. The books make a good reference manual, but as of right now, I think my experience and BCPS are worth more than the additional certification.