There are way too many negative reviews here from people whose personal expectations were not met by this series. To be frank, that's their problem, not a problem of this series, which is quite excellent.
If you want to get the most out of this series, leave your expectations at the door when it comes to: "evidence" - "UFO footage" - "something new," etc.
That's not what this series is about. It's about human encounters, human experience; not only about what happened in an experience, but also how the experience affected people's lives. In that sense, it's often more of a humanities series than the typical UFO series.
This is, hands-down, the best series I have seen on the subject of people's encounters with UFOs / UAPs. Kudos to Steven Spielberg and his Amblin Entertainment production company for making a mini-series that goes beyond the hundreds of other UFO series that are out there.