Union Pay cards issued by Gazprombank work in ABB terminals.
For example, I bought tickets at the Carpet Museum using a card. And in some cafes it worked.
The electronic queue, the service is long, the staff speak a little Russian. The exchange rate is average, no more and no less than in other banks. One of the few banks that accept rubles in exchange for manats. Dollars / euros are changed without problems, and old banknotes are accepted without underestimating the exchange rate. They issue transfers using the Garnet system. It is very unprofitable to go to Azerbaijan with rubles, transfer it to yourself through a Grenade and get an ABB rate at any branch - it is much more profitable.
There are sooo many people, there are no seats, everyone is standing
There is an electronic record, it saves you from a long wait. But all the same, the operations are performed slowly, get ready to spend at least an hour there