The form factor of the flat burger is, of course, super successful. They are served in stylish branded packages. Unexpectedly from street food. There are not a lot of items on the menu, but the ones we took (Fancy with jam onions, spicy Pyro Flat) were very tasty. And this is despite the fact that I'm not a fan of burgers and it's hard to please me.
We were pleasantly surprised by the prices of drinks. 120 RSD for lemonade is lower than the usual mark-up in similar establishments. The only thing is that there are very few seats on the street. There may be 6-8 on the chairs, but I definitely recommend the establishment.