We stayed at this hotel for 2 nights during our honeymoon. The hotel is in a very nice location and Hellbourg is a very beautiful place.
The service at the hotel is excellent, especially from the director: she not only gave me a free massage as a honeymoon gift, but on the morning we checked out, when our hired car didn't start, she also took us herself to the nearest Avis branch to get a replacement car. She was really very kind and helpful.
I also appreciated the environmental concerns the hotel displayed, from the 2 separate rubbish bins for different materials to the big bottles of toiletries in the bathroom instead of single-dose bottles - and the actual products were very good too!
True, the room was a bit cold in the evenings as there was no heating, and the reception desk was sometimes un-manned, but that didn't ruin in any way our really pleasant stay.