Some of the examples make for great tools in themselves and some are quite inspirational. Others already have existing counterparts on most systems or just feels redundant. I know it's hard to find examples for everyone, but I got the feeling of being shown 93 vacation images where 25 would have been better.
The examples themselves are easy to understand, short and to the point. If you find use of a few, but want to improve on them just a little bit, then I think the authors succeeded. If you like this, check out "UNIX Power Tools" as well.
I might sound a bit negative, but 3 stars means "I liked it" and I read it knowing that I'm no longer part of the target group.