This was a 10/10 experience. Kind staff, very cute, comfortable and clean rooms. I only had breakfast included, but all the food offered at the buffet was so tasty. You can also get coffee/juice/tea/milk/fruit yoghurt, you name it. The sauna and the pool are very clean as well. The general atmosphere of the place is very cosy and you can feel like you're home instantly. There's also a beautiful garden in the backyard, with a trampoline-for children and for the young at heart, like myself.
The only thing is that it is kind of off-the-map-there is a bus stop a couple of meters away, but in case you wanna go by train, you're gonna have to walk for about 1.5 kilometers from the Niklasdorf train station.
I would be glad to visit again in the spring/summertime, so I can see what the garden looks like.