I'm not a Metallica fanboy, so I only listened until the end of Master Of Puppets, but guys, seriously. Are you all high? I really wonder how many of you have ever even played a live show (and recorded/videotaped it to see how shit you really sound) when I read all these comments?
This is a decent live performance by anyone's standards. You'll find 5-10% bands in the world that can play tighter than this. About the criticism:
a) the "riffs out of tune" by Kirk are a chord here and there going wrong which happens to everyone (and is actually something I've liked even on edited Metallica videos like Live Shit Binge & Purge).
b) the "all over the place"-drumming is just not sample replaced and grid corrected (and yes, there are a many drummers who can play tighter than Lars) - it's still totally okay for a live performance in my book. Especially cause nobody is coming to hear Lars drum, they come to see a show (and I'd personally rather have a guy who has stage presence like Lars, than a guy like Shawn Drover in Megadeth who plays well but bores the shit out of me - I'm a Megadeth fan btw!).
c) James' vocals are absolutely fine like they are now. Especially when you consider that these are live videos. Check out most bands in a bootleg or tv live video and their vocalists usually don't sound much like the record - while they sound completely fine at the show itself. I've encountered this phenomenon many times and I still don't know why that is.
I don't know how many of you saw Metallica back in 1993 or earlier, but they've never played any better than this (even if some of you may nostalgically think they did) - the difference is that the rest of the world has caught up and surpassed them playing wise, while back then they were on top of the pile. Also the prevalence of grid edited music makes them sound "sloppy". I remember when everyone was thinking that Ray Herrera didn't play the "inhumanly machine-like" drums on "Demanufacture" when it came out, while today the drums on that record sound like they are "in need of editing".
DanLights/Cline: it's always a disappointment when seeing a band you've had high hopes for and they don't blow you away, but you simply can't expect a band that's been at it for 30 years to do more than go through the motions. Expecting actual fire from guys who make 100k/gig and who have played 2000+ shows is just not realistic. It's another day at the job for them, as sad as it might be for someone who expects differently. Then again: if you look at the audience in that video, it's mostly 30+ wanna-be-fratboys-again types. They don't even know what an out of tune chord is, so all is fine.
P.S.: The LED videostage looks killer.