I didn't realise that was her. I've never tried those myself, but like you I would've if I'd known of that association. The winery write-up by Halliday (
Sister's Run Wine & Winery | Australian Wine Companion) makes a clever fist of implying rather indirectly that the label is more marketing- than quality-driven.
Interested to hear what your thoughts are on better $10/bottle wines, if you had anything specific and current in mind. It seems to me you have to be a bit careless to get a bad wine for $14, but at the $10 price point it's a rather fraught business: What's on sale at any given time is so young that nobody of note has reviewed it yet, (or the reviewers deliberately misplaced the samples they were sent, so as to avoid having to taste them), and so inconsistent that you can't rely on a label at all. (De Bortoli Vat 1 Durif comes to mind as something that's had a few decent years in a row. Not spectacular by any means, but no serious flaws. Kingston Estate Cabernet had a couple of spectacular years in 08 and 09 where it could be had for $8.50 and beat the hell out of most $20 Cabernets, but I don't know what it's like these days.)