They're the best of the channels I've seen, but that's not saying much, because nothing compares to being there. For one thing, and it's not a small thing - you can experience a place without having a content creator constantly yattering away at you. Granted, not everybody has the ability or the resources to do any kind of trespassing-as-a-hobby, and it's not as if I myself have the resources to go to the same places they do, but even just going to the abandoned factory down the street is - if, again, you can do it - more worthwhile than their entire channel.