Entertaining, sometimes.
Useful, not really.
It is very click-baitybas many others have said. I can't expect them to be the most knowledgeable on everything (or anything...) But watching their Linux videos they've been releasing have been nothing shy of facepalm after facepalm. Sure, there are a few useful nuggets of info in there but I wouldn't take anything they say aa gospel.
Its for entertainment purposes and not for in-depth information.
I can get behind them exposing Linux to new users through their channel. But they could do it better.