We stayed at the house over the 2017 Christmas weekend. The house is spacious even with a group of 9 people.
The entire house is clean and well-maintained. There are 2 floors. On the main floor there is a kitchen, a huge living room area plus a big dining table for dinners and group activities. The kitchen is well stocked with nice appliances, eating/cooking utensils, and miscellaneous supplies (e.g. garbage bags, paper towels, etc.) There is giant master bedroom with a beautiful bathroom attached, along with 2 other well-decorated rooms.
In the basement, there are a ping-pong table, a foosball table, and a sauna, which everyone enjoyed. All of the beds are comfortable and the house is warm despite the size. The wifi is decently fast. The drive to the Tremblant village is reasonably close.
The property manager, Carlo, is very responsive and accommodating. We were offered to stay past the usual check out time on our last day because there wasn't another group coming the same day. Someone in my group accidentally left a pair of snowboarding goggles behind and he has also offered to ship it back to us in Toronto. Overall it was a fun and comfortable stay and I would recommend it to other groups or families looking to stay near Mont Tremblant.