I don't know what the various reviews (here and on other sites) are referring to with regards to a poor range or over priced. For the only supermarket in a 30km radius, this place is excellent, has everything you would need up in the grampians, and probably has about a 10% markup on prices compared to any supermarket in Melbourne.
I wouldn't recommend doing your entire weekend shopping here (although we did happily), for extras and beers and steaks and whatever else, this place exceeded expectations.
If you want, you can drive to the Woolworth's in Stawell (50km back and forth), or you can go here, your pick. read more