Worked well for me! Stayed in the Hyatt on a business trip and wanted to get some provisions so I didn't have to go out to eat constantly. I went in two or three times during my stay and had good luck each time. Good size market without being overwhelming.
I just stuck with the self-checkout because it had English, and I didn't want to be that American that smiles and nods until we have to ask a cashier to speak English.