We wanted to have breakfast on a Friday and went there spontaneously. Big mistake, because without a reservation nothing works because it's so popular.
The waiter was super friendly and asked us to wait 10 minutes because a reservation was late.
So we finally got around to it and it was so delicious.
We had the Südländer Spezial and I had it with gluten-free rolls. It was a dream.
Very attentive service and super friendly. We felt absolutely comfortable and can absolutely recommend the Mainkai. We will go there more often!