We spent a week from 21.6.2014 there. We were there with my husband and our maters (81 and 76 years) and our granddaughter (22 months). Therefore we could take only shorter walks on the surroundings, but we didn't mind, because the nature is fascinating there. The chalet is nice, all is made from wood, what is very pleasant. It was perfectly cleaned when we came. It is very well furnished (dish-machine, wash-machine and drier,... - all according to a description on the Belvilla web site). Every day my husband with me used the infra-red sauna, what was very pleasant for us.
Now I was reading the last review, so I must say that even when works on the new chalet continued, the noise was not so big yet. One day they loaded a soil from a heap in front us chalet help by an excavator to a smaller van and moved it by the new chalet. It was noisier, but they didn't start so soon morning. And it was interesting for our granddaughter to watch them -).
But we had a problem with hot water - it sometime was leaky but often it wasn't. We don't know why. We didn't ask on it in the Passhöhe Hotel, because they almost don't speak English. We got some discount card from them when we had arrived, but nobody from them was able to explain us in English language where exactly we can use it.
But in generally I must say that we spent one nice week there.