went to a bootcamp type class on company money 2 weeks ago in NYC.  amazing course.  like most bootcamps, they did provide brizain **** type questions, to ensure passes, but man, did i learn a lot.  we use a bunch of neapp products here on site, and they're amazing.
i get to be the first in the forum to say i have successfully passed my ns0-153 and ns0-163 tests, and i am a NetApp Certified Data Management Administrator 

153 i scored a 95% and 163 i skated by with the minimum score of an 80%.
tests are short, but very good.  153 was a piece of cake, but 163 was a bear.
good luck to anyone pursuing these... this is the wave of the future here... netapp and other storage devices like this are the way to go!