The access is a bit odd, you have to walk down a narrow path, but that makes you think you have discovered something hidden and local.
There were not many guests and the owner (I guess) was very attentive, suggesting food, drink and just chatting with us.
We had fish (Zander) and it was very good, together with some potatoe and sweet paprica. Bill was reasonably low so I can only recommend this place.
In summer, when it is warmer, there is a very nice terrace with view over river Danube.
Restaurant is not accesible directly by car, you have to walk 150meters down the concrete path and some stairs.