We have stayed at Weiberhimml twice and have throughly enjoyed it. The setting is incredible and it is so isolated there is no outside noise except for small waterfalls and the occasional cowbell when the herd walks past going home.
The room is quite clean, most have a balcony. Both times we were there the wellness centre did not work, but I believe this was just bad timing.
We were there during off season in the summer so it was very quiet, I gather it is very busy during the ski season.
The breakfast is good, but there are no hot items on the buffet.
The one thing to note is it is a LONG drive up the mountain. If you will not be hiking and want to travel to Bozen, Merano, etc be prepared that it will take 20 minutes to drive from the hotel down the mountain to begin your actual drive. If you are hiking, it is a marvelous location.