I saw Pavarotti once, but past his prime and late-career: Tosca, Metropolitan Opera NYC, 1995. The voice was still excellent, but at that point he no longer lived up to the hype. He was severely overweight, and didn't even attempt acting, but rather stood motionless and sang. Fans still applauded loudly.
Of course, seeing Pavarotti in his prime would have been different, and I don't want to diminish his legacy.