Chinafix Book - worth buying?

Inwerp

New member
Hello everyone.
I found a very interesting book recently, but i'm doubting if it is really as good as its excerpts.
This is not an advertisement for any matter, I'm just curious if someone has already bought it and can describe its worth here.

http://www.chinafix.com/thread-962449-1-1.html
for example, here's a demo page from the charging circuit:
 

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