I was a first year comp.sci.student when Mitnick was caught and always wondered about the real stories behind it all, so it was a real delight to finally read Mitnick's own words on his exploits in this very readable book.
He's not very apologetic about his actions (which consist mostly of talking people into given him information he shouldn't have, rather than actual hacking though there's a little of that as well). He's always got some excuse ready to justify the 'just one more hack.' The unapologetic nature of the book may be off-putting to some readers, but I find it refreshingly honest.
As someone who hacked his way through an unchallenging time in high school, in a time before the Internet where you had to figure out everything on your own, I totally understand the excitement and the lure he experienced, but thankfully I was able to stop before it got me into any serious trouble. Decades later, I find that my most skilled colleagues in the programming field are those who already in their teens were interested in figuring out 'how stuff worked' - actions which today would've landed them in jail...