A nice product. Worth the price and shows thought and care in the classes. I like the author's solution in re-creating the Barbarian, though I may not agree with it wholeheartedly. The Ninja class is also nicely done. One concern of note is the use of Martial Art Styles, which may turn out to be a little overpowered for their price, but these are first impressions and not the result of playtesting.
All in all very much worth the price.
[4 of 5 Stars!]