Absolutely, objectively, expensive for a small burger. They're charging premium prices even in the…read moreUS ($13+ burger) and giving such small options.
So that's quantity, let's talk about quality. Bottom line, it's a decent burger. Worth being charged insane prices, even as a Carioca myself??? No, not at all. The fries are standard.
If you are drunk and want a GOOD greasy fat burger, this is not the place. It will underwhelm and make you sad you spent so much.
If you are just in the mood for a nice good old burger to dig into, even sober, this will be a better taste for you but again make you wonder why you spent so much.