I'm a developer with many years experience - C#/C++/VB/.net
I'm going to be taking over somebody else's automation scripts writen in powershell. So, I figured that I better lear it - fast.
Although it took me more than an hour to run through these steps (I played a little with them), it was well spent.
I only give it a four out of five, because I wish it was longer than an hour. It would be nice if he took it to the IDE and more advanced functions and all.
But, it was nice that he has you work in your temp directory where you already have lots of files there.
I had no trouble reading any of the examples on the kindle (which I know a lot of times technical diagrams and stuff are unreadable on the kindle).