I brought the St. Elias jacket + bibs for Japan trip. I don't usually spend so much on outwear, normally going for something more mid range. The St. Elias gear performed very well, and has definately shifted my thinking on the value proposition of this kind of high end gear.
We did a lot of touring in really heavy snow (up to 30cm/hr) and approx. -5C. Breathability was good to the point that I only needed to open vents a little bit and could usually keep my goggles on - from my experience in Gortex and other hardshell kit I would have been getting really hot, but soft-shell wouldn’t have cut it for the precip rate. This meant layering was really easy and limited faff at transitions etc. = more laps!
Durability wise was excellent. Did lots of tight tree skiing and plenty of plowing through branches as a result - no issues there.
Comfort with the stretch and soft fabric feel was really nice. I would say this is one of the biggest wins - the gear is so comfortable to wear and easy to move in. But at the same time it doesn’t feel flimsy, so you don’t get wind press or flap when you’re skiing fast, and feel like you are in something substantial and solid.
Fit was true to size chart - I normally need to size up in brands like Rab or Macpac, but L was perfect for me in both jacket and bibs. I'm 180cm and approx. 95kg with big chest and shoulders. Fit look was very similar to the model photos - not baggy, not euro tight. Would be fine with sharps on in technical terrain.
Adding all that up, this gear feels well worth the money, and absolutely superior to hardshell kit on the market. 10/10 from me and would buy again.