Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: THE THING THAT SHOULD HAVE BEEN

This video is indispensible for those who want to remember Metallica as the great band they once were. Featuring bootleg performances of songs from Cliff Burtons days with the band as well as photos and rare footage CLIFF EM ALL is the sort of no frills, no BS you got from Metallica before they let everything go to their heads and started releasing mediocre material. Its great to see Dave Mustaine on lead guitar early on. But all Metallica is these days is Kirk Hammett and a couple of middle aged egomaniacs. Sad really. Cliff would be turning in his grave.