I'm not sure of the Diablo version but an old pal of mine picked up his
Hus-Ski off an older-timer in Ontario, who I would have to assume was in the process of cleaning out the garage. Although it needed some minor work, buddy snapped up this piece of history at a "good" price...not sure what it was, but...he did a little work, gave it a coat of yellow paint with some black accents...added a couple of "wooden" slats(the proper word escapes me), on the tracks and had the seat re-done with the red vinyl and the thing looked like a million bucks.
It ran best on flat straight, ground. It really looked like a lot of work turning and climbing snowbanks. Not sure how well it performed in deep powder, I would think with it's weight, probably, not well.
And if you forgot, and slid forward on the seat before climbing the snowbank you may have been knee-capped.
A real "hoot" other than that!
Of course, it spent most of it's time in the garage. My friend usually never let go of any of his toys. This beast was an exception!
While I've never had the pleasure of experiencing a "Trail-Breaker" in real life, I think one would have to be very "commited" to riding and repairing the thing, and be in the position geographically to actually put it to use regularly enough to warrant keeping one.
There are just so many more "sensible" options out there nowadays.