Living in one of the apartment buildings right near Constantino's, I'm a regular not necessarily because I want to be, but I have to be. There's no other grocery or convenience store nearby. That said, it is overpriced because it has an on-demand market literally right above and around it and next to no competition.
I'll go there for staples when I don't have time to go elsewhere, or for a meal from their prepared foods. Decent selection, but not comprehensive of course. Love love love the vegan carrot cake (and I'm not vegan). And chicken wings.
Employees are always very friendly.