#1
I really want this Lamb of God tab book that costs 20 bucks. The tabs here aren't exactly great and I just want some accuracy. My ear isn't very good yet, so I need these books before I start tabbing things by ear.

http://books-videos-music.musiciansfriend.com/product/Hal-Leonard-Lamb-of-God-Sacrament-Guitar-Tab-Songbook?sku=907549#new

What I want to buy. Worth it?
R.I.P. Ronnie James Dio. Supplied amazing music to both me and my mother.

He will be missed.
#2
Look up reviews, sometimes even tab books are inaccurate. Usually it´s not bad at all, but maybe a couple odd mistakes throughout - nothing to worry about at all.
#3
I would trust here more than a tab book. They're not even written by the songwriters. They're written by a regular guy. At least here, people leave comments and improve on the tabs. You're not going to find accuracy in a tab book.
#4
I would trust a tab book more than here, but it still annoys me that there are mistakes in a book you pay for...

I like tab books because they offer notation also, which I find much much easier to read than tab.