The standard $150 paperback version is good but the text is a little jittery on this version - I compared it to other similar publications and it appears built at a specific price point for run-of-the-mill audiophiles (by all means go for it if you are not discerning enough to notice fine details). Serious audiophiles, however, will definitely want the hardcover version (far superior) with gold bindings, a pure silk divider and embossed text!
Just kidding ;-)
Just kidding ;-)