Mount Mary Wines?

I had never, until last night, heard of them until a friend from HK told me she just opened a bottle of the 2001 Quintet and thinks it is over-rated. I read up on them and, apparently, they are, in Australia considered on “Grange level” but (supposedly) of a more reserved and under-stated style.

Just wondering if anyone here has tasted them and would like to know the impressions of those that have.

Bought some bottles, still in my cellar unopened.