Super expensive + Super selection = Super amazing,
This place is like a toy store for foodies. I once went in there to get food for a Friday night date for two, and ended up spending close to $150. And while I would have normally felt extremely guilty for that purchase, the quality of it prevented me from doing so.
And while McEwan is certainly trying to capitalize upon the "too lazy to cook" crowd by having an extensive selection of prepared foods, if you're looking for great produce and hard-to-find ingredients, you're certainly going to find it here.
I'd say that overall, this is the kind of place that you should definitely indulge in every once and a while, but leave your milk/cereal/eggs purchasing for your neighbourhood Loblaws.