We stayed at this property with another family, kids ranging between 5 and 7 years.
We thoroughly enjoyed our stay. Waking up to the view of the lake and mountains every morning was absolutely mind blowing. The heating was lovely and warm, and the laundry is set up with racks for drying skis and clothing.
Martin was fantastic - excellent communication, and actively involved in fixing some unforeseen issues we had during our stay.
The only thing to be mindful of is that the living area sits over the downstairs apartment - we were very conscious of our kids thumping around and bothering the guests downstairs. Also, if you are traveling with younger children, you probably want to consider hiring a car as getting tnto town and back again was a bit much for our lot.
We'd thoroughly recommend Martin's place :)