This is a good intro to Apocalyptica, basically four guys with cello and occasional percussion playing classic Metallica. In later albums, they play some of their own compositions, many of which are actually (should I say it?) better. Cellos with and without electrical enhancement sometimes sound just like electric guitars, and that's boring after the novelty wears off. But in the songs where the cellos are allowed to sound like real (acoustic) cellos, the music takes off, the melodies and harmonies speak for themselves, and Metallica emerges as a group that composes real music.
Four stars, not five, because yes, we know that electric cellos can be made to sound like electric guitars. But well worth listening to.