DistroTube's review, albeit positive, is rather superficial. Funny how it looks for systemd desperately. He did the same even with Devuan (the definition of anti-systemd distro). And I don't think this is just a joke. He said elsewhere that he doesn't have any problem with systemd - but in many videos everything he says shouts "I love systemd" from afar.
OTB's review is also positive, but he doesn't go into much detail either.
I think the Indian guy did a more thorough review, and he tried much more things than the others.