Hard to tell with the censored link. Who transcribed them? There aren't that many complete sets, so I'm guessing it's Walter Despalj? If so, they are pretty good. Not everyone will like the added notes, and some of the fingerings didn't work for me, but those are easy to change.
I'm not sure they make for good "practicing"! One should be committed to learning them as musical masterpieces, not for building technique. Anyway, one needs tons of technique to even attempt them!
Greg Byers 2016 cedar/Ind
Randy Angella 2009 sp/Br