This won't prepare you all by itself, but it is perfect to cram in some study time when you have a few extra minutes in a day. I ended up using it almost like electronic flash cards to help figure out what areas I was still shaky on and needed extra study. When you consider the cost of some Six Sigma books it is definitely worth it.
This is a great way to capture all those lost moments and convert them to studying. Lots of content, well executed.
+corrected content errors