It's awsome!
If you could purchase ten units for the price of one unit, (45K.) It works just as advertized and is a big improvement over the prior generation of virtual welding simulators. It could be a valuable tool for training. Getting stand off distances, gun angles and parameter selection practice without burning metal could be a big material savings... But it will never pay for itself at it's current price.
As it stands, prisons and the military, being the only ones who can afford multiple unts, are the only folks who can get any real value and benefit from those things in my opinion.
At this point, If I had 45K burning a hole in my pocket, it would buy the better part of a dozen inverters with dual feeders.