Tbh, I don’t think I agree. The only times I feel they can’t really be impartial “even if they say they are” is when they use a sponsors parts to build something. Or otherwise the whole video is sponsored but they kinda are reviewing the fevice. I don’t really like those videos but they are very clear about the fact that it is sponsored so viewers can at least down some salt whilst they watch the video. They also do state some issues they have with the products when they arise which is good (though obviously they may not say everything that’s wrong with it)