Ken Wheeler has saved me thousands of $ over the last couple of years..on his recommendations of buying used quality lenses and flashes, he has always been spot on..I never heard of Used Photo Pro (Roberts Camera) before I saw his recommendation..what a first class company..yes..he can be abrasive, rude, and he always repeats himself, but the man is very intelligent on numerous subjects..he has no affiliate links, ( which he repeats quite often), so he could care less whether you buy what he recommends or not..yes..he mainly shoots Nikon and Fuji, but he doesn't hesitate to criticize either company when it is deserved..I would rather take the advice of someone like him with years and years of experience and who actually buys and uses what he comments on with zero financial gain than another who has their hands in your back pocket..ok...rant over :)

The Angry Photographer is not stupid, far from it; and he knows camera gear and lenses. But, he enjoys being judgemental, often negative for effect (Sigma lenses). He is arrogant to a fault, but with some good reason. Like any camera guy, one should watch him for information and knowledge, but take him with a big grain of salt.
He loves to hear himself talk, and spends far too much time repeating himself, re-phrasing what he has previously said; and then saying it again. He will talk for 15 minutes to say what could be said in five.
I will continue to consider his opinions after suffering the through his presentations.