Our family (two adults, two kids) stayed in the Chalet Alphusli for a week in August. The Chalet is in the village of Axalp, which is a lovely spot. It is a 20 minute drive up a mountain road from the town of Brienz in the valley below. The view from the village is lovely, and the chalet is a short walk from a few restaurants and a small grocery. The actual location of the chalet within the little holiday home development is not quite as lovely--it's surrounded by gravel parking lot and retaining wall. But it does have a nice deck where we sat out for lunch--but not much privacy there given how close the surrounding homes are.
The chalet itself is one of the cleanest rental properties I've ever stayed in. It has a stove and cooktop, a good sized fridge, and enough supplies in the kitchen to cook some nice meals. It also has a wood-burning stove. The space was just big enough for our family of 4. There are two bedrooms upstairs and a bathroom, and downstairs is a single space with kitchen, dining table, and living room combined, as well as a small second bathroom. The kids enjoyed watching movies on the big projector screen in the evening and there were a few games to play as well.
One of our favorite things to do nearby was the woodcarvers trail, which starts from a spot just above the chalet. It is a lovely walk through the woods with delightful carved figures all along the route. Great for a family hike.