Bought a set of these to go with my also new Scarpa Mont Blanc.
However my Mont Blanc are on back-order so I road-tested them with my Scarpa Summit GTX.
Compared to a pair of Sole Ed Viesturs footbed:
1) The first thing I noticed was the the Superfeet are wider in the toe box area (A big plus for me!).
2) The heel area is a little narrower. Not a big deal.
3) The Superfeet doesn't have quite the arch support as the Sole footbed have. Not that big of a deal to me.
4) The Superfeet tend to have a tad more cushion/shock absorption. Definitely a plus!
I very happy with them, especially the wider toe-box area. Very comfortable footbed!