I'm the OP. Figured I ought to bring some resolution to the thread and answer my own question.
I've used it for a month with the 100/200 and 400/600 diamonds. Sadly, even for what I wanted, this was not enough to produce an acceptable edge. Basically, as it came off the 600 diamond stone, it was sharp to about the point where I start thinking it's maybe time to sharpen the knife. Granted, I never actually get around to sharpening the knife before it's much, much duller I think for many people this might be satisfactory. However, I was used to something sharper than that, even for working knives. I added the 800/1000 diamond and the Super Fine Ceramics this month and, after doing one knife, I think we'll be in the ballpark for what I'm used to once I get the stones broken in and improve my technique a little.