I am sure it works on a flat trail with 2 feet or less snow. But less sure it would work in a wide road ditch full of snow 4-5 or more feet deep. What keeps the front ski's from coming around if they are bolted onto the hubs? That would be nasty of you nosed it over into a ditch full of snow and they caught, rolling them into the rocker panels.
If you weigh it and divide it by it's foot print in inches, to get PSI, I am betting 5lb/in sq. and that is good for say mud, but so good in snow, especially deep non reactionary snow. ( deep enough it doesn't put the weight to the actual ground under the cat) Good "snow cat" territory is more like 1.5lb/in.sq. and less....
I do however live in flat farm country and see the utility of this for accessing fields in the winter, if you use field drives to get into them.
Neat work for sure. Nothing like a farmer with a good shop and some time on his hands.......Winter! I know, I am one too!
Best regards, Kirk