This is not a hotel, nor do they pretend to be one. It is a hostel/dormitory with bunk beds and very few services. You are issued linens to make up your own bed and if you didn’t bring towels you can pay for a small thin bath towel at the hotel. Reception is only staffed from 9-11am and 4-6 in the afternoon. You can ski in/out to the Praz Gondola, and 1550 is a 10 min walk or accessible by shuttle.
When I was there it was empty, and if full it might have been a much worse experience since the walls seem quite thin and I imagine there could be swarms of children or college age guests staying there at times.
I think it definitely offers a relatively cheap option in Courchevel and if you are a family with several children then the Pros might outweigh the cons. My room had bedding for 6 including a bunk bed, a trundle type sleeper couch and two twins in the “master bedroom”. Just recognize that all of the mattresses are simple foam ones and if you are picky about bedding then this IS NOT the place for you.