A better title might be How to Vulture Bonuses, because basically it just covers machines where the bonus persists from player to player. If you've played one of these machines a lot, the info isn't that surprising but might have a couple of details you missed or hadn't thought about. I was a little concerned that the info might be dated but as of my last trip in February most of the machines were still in casino, although some like Hexbreaker are fading away. This is where the website hook comes in, to actually keep up to date it would be essential. Some machines are covered in more detail than others, and there is a Reddit feel to some of the information.
For me the book is worth the $30, had some points I might use and will probably take it with me on my next trip just in case. I won't be vulturing, play for enjoyment and the idea of hunting down an improved chance for a bonus doesn't appeal to me. But I do enjoy learning things so this is good for that.
Will I do the website? still out on that, the $ isn't trivial and frankly the discount offer isn't enough to matter, and the risk that I will be disappointed and pissed off for a year is a factor. I have been an LVA subscriber for 30 years and accepted the wait for the book, but the website is something else so I'll wait on that.
Feel free to ask or question, this is just me and my opinion.