Very good burgers. A delicious meat/sauce combination in the varieties I've tried. All, except the crispy chicken, can be gluten-free. They control cross-contamination and serve homemade fries. There are more options on the menu to order and snack on.
The waiters are attentive and friendly, very pleasant.
I found out they had gluten-free options by chance because they don't even mention it on their website, but they're very well-versed in the matter.
It's located in the old town, in a square.
I highly recommend it.