Dude did you miss the underling/overling discussion? You can't judge a book by it cover.
Trust me, I have "read" thousands of "books" that looked spectacular and were terrible. I have also "read" many many "books" that looked marginal or ok and turned out to be incredible. Don't get me wrong, I have "read" at least 5000 "books" that looked flawless and turned out to exceed even that expectation. The cover definitely counts, but it is not everything. After a while you learn to understand the covers a little better and weed out the deceptive ones.