Instruct: Classify a review as either positive or negative.
Query: This is Metallica's entrance to mainstream appeal.

I was very dissapointed with this recording. I am used to thrashing, in your face, heavy and loud Metallica. I must say, this was a big let down. It's great if you've just heard Metallica on the radio for the first time. But, for someone who has followed them since they first got together, it's sad to see that they've sold out to appeal the masses.