I visited here as a tourist several years ago. The store was a bit small, but had adequate selection of common American snacks. A ventilation unit was rattling rhythmically. The staff member on duty was pleasant to deal with.
April 2023
Not really 24 hours. Randomly closed. No sip and save. Not clearly posted anywhere.
January 2023
Online says 24 hours. I walked 4 blocks there at midnight...closed. Reasonable selection but a bit pricey.