We are born with pretty good 1:1 bullshit detectors, and exceptionally credible people easily earn my trust. Aggregated review platforms like rotten tomatoes and Amazon are just garbage.
He measures TDS which I admit is one way to judge a water filter but people may have other considerations they have to consider such as are they looking to filter fluoride, bacteria, etc? Some of the poorly performing filters that fared badly in TDS filtering filter these other items much better/or handle the material better(not filtering fluoride).
Also small nitpick, he used one of the manufacturer's free provided TDS meters instead of buying a independent meter(the TDS meter was provided by the winning product). I know because I got the same meter provided free with my Zerowater meter. It seems accurate when I compare it to an independent meter but if you know that it was provided by the manufacturer it is not a good look.
Now this is the only video I have a gripe with because I have done a lot of independent research on water filters before seeing this video so these things popped out to me...but what about his other videos? I am not and cannot be an expert on all the different items he reviews so what else is he not testing properly or leaving out?