I came across this duty free on the day of the traffic jam at the Georgian border. The Internet went missing and we got up at customs for a long five hours. But this convenience store also closed with customs, leaving us without water and sweets.
And so - they don't sell anything, they just show beautiful things.
The choice is small. Payment by card is only in lari (auto-conversion in the terminal at an unfavorable rate). When paying in cash, you can pay in euros, but the change was given in lari. Moreover, coins of 2 euros were given out simply in coins of 2 lari - maybe I didn't notice, or maybe they were specially slipped