Romantic View and Huge
Why locals love it
First there is the view over the city, second their huge variety of Austrian's most famous dish "Schnitzel" (of course not gluten-free) and third it's a romantic place with a huge garden and even a little spa in summer. Yes it's a little far off but often you exactly need that.
Why you should visit it
Genuine Austrian food of high quality, not a "tourist-trap", friendly staff and a gorgeous environment. In winter very cosy and sweet as well but even harder to reach. There is a bus stopping basically in front of it though. Prices are ok but you might want to reserve a table. Not a lot of vegetarian food.
Cordon Bleu Verde/Rouge
Villa AuroraWilhelminenstraße 237, 1160 Wien