Personally I was a massive fan of Amy, from ‘Frank’ up to her final releases. Her lifestyle can be discussed or criticised but it was just as much a part of her as her voice was.
I personally think the turmoil in her life brought an element to her voice that no-one can imitate. I doubt that was even the aim when Beyonce covered it. Don’t get me wrong I love Bey just as much, but as much as I love a cover. No-one can cover Amy. In any form.