Italians have a great habit of putting cute tiny bivouac huts in convenient places. This is a very good example of this and it is placed perfectly for those doing the traverse of the Breithorn the following day. Other alternatives might be Pollux and Castor, which you could easily do in a day from there, down to the Quintino Sella Hut. It really adds to the experience of the mountains, spending a night in a hut like this, particularly watching the fading light in the evening and looking at the Ayas valley thousands of metres below. Clearly you need to be acclimatised to consider staying here. If not then you are much better staying at the Ayas Hut lower down, in more comfort, with less of a headache in the morning.