A nice well appointed, clean apartment with 2 rooms, one en-suite, large living area and small kitchenette.
It's at the top end of the village, a good uphill walk from the station.   We had our baggage in backpacks and walked to it.  If you have suitcases you might be better with a Taxi, there are a couple in Wengen 
The "Cevi  youth organisation has a large building (for 55 kids) just across from the Chalet, occasional you would hear them but they were no real problem.