Always do that no matter who the seller is. So many people just see the picture and hit the button. Often, bad for both buyer and seller.
I find Adam’s grades and services spot on.
Yes, always read everything and look many times at the scans.
I generally agree with blissard's grades; a Cole I bought from him quite a while back was at least a couple grades higher than advertised. I'm just saying, due to his reputation, don't bid based on the grade in the title itself.
A few descriptions note tape, missing pages, etc which are not in the title. I've also seen scans with rust not mentioned in the description. Due diligence and everyone will be happier.