The calling card for Chalambar is that you get the plumpness of the Heathcote Fruit as well as the spicy/fragrant grampians fruit and they can stand up to aging.
I think they hit their price point well and like that they dont rely on heavy american oak.
That all being said, they are not going...
Alkina : Barossa project with plenty of foreign $$$ behind it and a couple of $300 grenaches and a similarly priced shiraz
Edit: google "
Jancis Robinson on the freshness of Barossa Valley wines"
..to read article
Aint nuffin' more Aussie than the Sharizza!