Family of 4 (2 parents and 2 super young kids), we rented the place specifically to experience the Montreux Noel. . Lovely clean place. Very nicely decorated, however, we have 2 super young kids - with all the glass mirror furniture, the kids left their cute little fingers and hand prints all over (sorry).
The beds are super comfortable - great to sleep in.
The building has an elevator making it easy to bring stroller and items in. Great location to catch the train to see Santa. With young kids and trying to get out on time, this was a life saver to be so close and not miss the train
While it's not too far from the lake, but it does take some time to get to the lake with the stroller or just finding the streets and elevator to get to the market.
The one thing to keep in mind is that someone or others live there. So all their belongings are there, which can be good or bad. There are some empty drawers for clothes but no closet to hang your clothes. The kitchen is well equipped with the basics so you can use oil, salt, pepper, herbs etc.
We would definitely stay there again.