I climbed the Cheminees de Sallanches a couple years ago.
Solo. No refuge stay.
The normal descent route on the W side had snow on it, so I also down-climbed the Cheminees.
I liked it.
I sort of remember maybe it had some hardware in the more difficult sections.
Easier and quicker to approach from the W side parking at Col des Anes.
Which also works better for descending the W-side normal route.
Ken
P.S. a more exciting route (with Via Ferrata cables for aid / protection) is the south-to-north traverse of Mont Charvin in the southern Aravis (above Ugine).
P.S. For even more remarkable climbing situation (sustained arete) and more commitment (and no VF), might consider the East->West traverse of the Aiguille de la Vanoise.
Post edited at 17:18