Those stones and three strops loaded with 3,000 8,000 and 14,000 grit diapaste. I bought the basic set of like 4 stones back in October 2013. Used them all year. The lower grits finally got dished enough to need to flatten them and figured it'd be easier and probably cheaper just to buy a new set so I did probably November 2014. I reprofiled Elmax, S30V, S110V, PSF27, D2, and some 1095 damascus among others. The Elmax and S110V were both on ZT 0560s and with blades that thick it's not easy but the stones held up fine. I use the hell out of my PSF27 and S30V blades so I sharpen them every other week or so. I also sharpen two 6" kitchen knives with 8CR13MOV steel at about the same frequency. So on average I sharpen on a regular and recurring basis 2 knives a week. I've reprofiled probably 7 or 8 blades down to about 10 to 15 degrees per side, lopping off about 5 degrees per side on selected knives, depending on the knife. That's not including the other knives I sharpen for coworkers on occasion. All that was done with the basic set plus strops before "needing" to replace them.
Full disclosure, when I got the second set one of the stones was separating from the backing. A little gorilla glue easily solved that problem. From what I've seen the stones are cut at about the same accuracy as the Congress stones I've had. If I had to compare I'd say the congress stones give a more uniform scratch pattern while leaving the surface far cloudier at the same relative grits as the ADAEE stones. I rarely pull out the congress stones anymore because I end up with better finishes with the ADAEE stones. That and my 600 grit moldmaster sheds like crazy.