I have used this apartment twice now in the summer. It is one of a number in the Sportszentrum and is modern and very well maintained covering two floors with just about everything you could need laid on. The washing machines are communal and down the corridor but this does give you access to large machines and a drying area.
The Sportszentrum includes a large indoor swimming pool which can be used in the afternoons (you need to pay the resort tax but otherwise the facility is free).
The view from the balcony and windows is stunning and there are plenty of well signposted walks for all levels plus activities for the more adventurous. Across the valley is the larger village of Wengen and Interlaken and the lakes are only 45 mins away by train.
All in all this is a lovely apartment in a truly beautiful area. Something I would really rather have kept a secret!