We had a great time in La Toussuire for a cycling holiday - the hotel was basic and no frills but clean and comfortable.
Check in/out staff were efficient and well organised but not friendly.
Be prepared to be given a pack of sheets to make your own bed, do an inventory of contents, clean your apartment thoroughly and have to have it inspected before check out. Strip all beds and take sheets laundry down to the basement etc etc.
No toilet roll, cloth, washing up liquid or anything at all in the apartment so take anything you need.
Having said that, the bed is comfy, the views are lovely and the location is great. We would return.