I felt very mixed on pretty much every aspect of this series, but in the end I'd have to say it's fairly good. The complete story it ends up telling is very padded out with lots of unnecessary filler, but is still quite fascinating. The visuals are pretty ridiculous, with the interviewed parties being placed in random decrepit buildings and giant bank vaults, but I got used to it eventually. And I'm seeing a lot of these reviews complain about the music, but it never really impacted my experience. I'd recommend this series if you're fine with getting through a lot of boring stuff to see interesting story.