A small currency exchange office from Belarusbank. It performs its functions. I personally did not see any advantages over other "exchangers". Therefore, you can use it.
Convenient location on the ground floor of the President Hotel, quickly and easily exchanged for Belarusian rubles. A polite cashier who gave all the necessary information.
The terrible exchange rate of rubles. They change 30k1. Despite the fact that the adequate exchange is 25k1. Minus 20% for you. Definitely, change it elsewhere. Or better yet, use the card.
There is no currency, I have not visited. But, probably, everything is like everywhere else, an exchange is like an exchange. I think that it is no worse than many other exchangers of this kind...