We seem to have gone off at a tangent - discussing reviews / reviewers rather than GamuT amps!Roy Gregory recently wrote a blog post about the subject of the "grip of the magazines" and how times are changing. You can check out his recent blog/review site gy8.eu for other interesting articles as well. There are even some of the on-line reviewers calling out some of these highly lauded reviewers for their lack of anything that resembles a real listening space.
I am attaching the link to the article here. I hope it doesn't break any rules.
However, there are far too many people who have little real reviewing skills or equipment and just record themselves prattling along about a piece of kit they have in their own room. Frankly I don't waste time looking at these self-appointed Youtube reviewers. A reputable magazine will employ or commission respected and knowledgeable reviewers to review equipment for inclusion is their magazine. If they didn't go down this fair and unbiased route, they'd soon lose their readers and income. Personally I regard Stereophile as the best source of reviews, but it's a fact that they review only stuff that is handled by a certain number of dealers - ie not the stuff you find peddled on Ebay or the stuff that Joe Bloggs knocks up in his garage and sells direct. Although Stereophile's reviews have shrunk from about 15 pages to 2 or 3, I have no issue with that provided there is honest, unbiased and accurate information provided.