Lemmy was a fan... Enough said, no ?
If it's not enough, listen to this :
They are a great band and they have a great sense of the melody and composition.
Like most of us, I discovered these facts only when I grew up. It was so easy to hate them back in the day.
That said, I have none of their albums, but I don't turn the sound off when I hear them.
Muriel's Wedding was also a fantastic film for (non) Abba fans, and with an amazing Toni Collette !