The short version -- It's worth the asking price.
The long version --
It fits nicely in a small bag, goes wherever my knitting goes and is jam-packed with useful uncluttered knitting information.
It does not cover the knitting world, but it'll help you get to know your own neighborhood.
Check it out of the King County Library System for a trial run.
I think the only way it could be better is if it came as a solar powered book wafer.