The "Steegwirt" is definitely worth a visit. The restaurant is on the way to Bad Goisern. Austrian cuisine with the ambition to cook something a little more unusual. The location is fantastic, right at the junction of Lake Hallstatt and the river "Traun". In summer you can sit outside in the beer garden, in winter in a very nice ambience. Like all restaurants in Gosau, it is family-run. The building is listed as a historical monument and has been beautifully and ambitiously remodelled with large extensions following extensive restoration work. For us as "old Steegwirt fans", the old charm has been somewhat lost. But that doesn't matter. It's definitely worth a visit.

Small update: I would like to correct myself regarding the somewhat reduced charm. We stayed at the Steegwirt with our friends between Christmas and New Year's Eve. The service was first-class, the food was delicious and the parlour was just like it used to be: simply a great atmosphere!