Personally I do consider them a negative because they are not really realistic and grounded when giving reviews. It's a different story if it's a person that's

Personally I do consider them a negative because they are not really realistic and grounded when giving reviews. It's a different story if it's a person that's used a device that they bought for a year. But these tech youtubers, they are extremely dependent on a good relationship with the brands because what brings them money is doing the "reviews" on day 1 (if not before) and they can only do that if they have a good standing with the brands. Meaning they will can only talk the product in a way that they know the brand is going to be okay with, mentioning obvious flaws that are easy to disregard ("it's not the best value for the money" is a classic). This is bad because this type of journalism is constantly moving the window of what's acceptable. Channels that are truly critical (for example gamersnexus) don't get any support from brands. Channels like that are rare, of course, they do exist. So, to reiterate my point, these channels are not informing: they're selling. There's a really good documentary with Noam Chomsky called "manufacturing consent" that really gives a good overview of this topic. Well, it's about politics, but the same applies for marketing.