At first, I was a little hesitant about eating burgers in Switzerland because I usually want to try…read morethings that I can't get back home. But we saw that they had a burger with raclette cheese and that was enough to make it unique! Asllani's specializes in burgers but they have other options if you're not interested.
Given that there's a couple thousand reviews on Google, I would recommend getting there early if you have a large group. They don't take reservations and there was already a line before the restaurant opened. Since we had a large group and it was a nice, summer day, we opted to sit on the patio under the shade.
The burgers are kind of expensive, compared to the US, but they're big. For an extra 8 CHF, you can make it a combo with fries or salad and coleslaw. I didn't know you could actually pick truffle Parmesan fries for the combo and ended up ordering it separately. The burger itself was really good and I'm not sure if it was the raclette cheese. I think even with any type of cheese, the burger would've been just as delicious. I mean, our entire group had different types of burgers and they all really liked theirs.
Highly recommend if you're in the area! It's a nice break if you're trying Swiss cuisine everyday. A couple of notes though: they don't take Amex credit cards and they'll charge for tap water.