I live nearby and stopped in for the first time this week.
I do not entirely know if there is a clear analog for this market. The produce department is usually what I judge a supermarket by and this one is pretty small. What I saw, seemed in OK shape. They have basics. Produce alone would not get me to return.
The bulk section does seem more extensive than you would expect for a market of this size. There were items there I regularly buy (grains, legumes, nuts) as well as a things I don't (prepared granola, chocolates, snack-y things).
From the packaged goods section, it seems they are tilting a little natural food-y and upscale (a wide array of canned seafood and many of the same brands I'd see at Whole Foods for example).
Some things were on par with other stores and some were cheaper. Steel cut oatmeal was 2/3 the price I've seen elsewhere (not that it is that expensive to begin with). Some of that sustainable canned seafood was a bit cheaper than Whole Foods (and not carried at Mariano's). I didn't really investigate the meats or seafood.
It seems they took the vitamin/supplement and bulk sections of a place like Whole Foods, shrunk them down a bit, and squeezed it into a typical sized grocery (with most other departments shrinking a bit more to compensate).
I can still see myself stopping here if I know I need bulk items and might need some other staples that I'm pretty sure they'll have - especially if it's a busy time and I don't want to head further out of the neighborhood to the big Whole Foods. I don't know that it will wind up replacing any stop in my regular rotation, but it's now in the arsenal.