I've read it. I've reviewed it here:
http://www.jetcafe.org/~npc/reviews/...ge_holdem.html
It's mostly, but not entirely tables of numbers. I don't expect that recent simulations would be "more accurate". The assumptions underlying the book are simple, but are easy to understand and work with. I found it wortwhile, but it's not an enternal classic.
The trick is finding the book. It was self-published, it's way out of print, and the author has passed on. If a copy comes your way you might want to grab it, but it's probably not worth expending a lot of energy chasing it down.