You can get there also from the SP25 which leads to Passo Valles, this is a more easy and flat walk.
It's a small rifugio with a panoramic terrace where you can taste good homemade desserts. Next to the rifugio there is a building which hosts some big rooms with a total of 25 beds where you can spend the night using your sleepingbag.
The rifugio is open on request for dinner and overnight stay.