I have never seen one, other than on the internet. Watching her work the blade change from one hole in fret work to another seemed a little cumbersome, lifting the bottom clamp up through a hole and feeding it back down through that hole and then placing it in it's holder, but if a person does it few times, it may become very easy. Just looked like a lot of steps... Maybe a person could leave the clamp in place and just bottom feed like they would on other saws. Changing belts looks easy, but I remember I had a Nova Lathe that you changed speeds by changing belt location on pulleys. Very doable, but then you get a machine where you just turn a knob to change speeds and hummm, much, much more convient. You son't even have to stop the machine to do it.
I don't know how long PS machines have been around. On one hand, if they have been around a while, it is good, they may be around with parts in the future, on the other hand, I wonder, if they have been around for some time, why are they not more popular machines. Seems like very few people know about them...
Anyway, these are just some thoughts I had based only on going to their site, reading and watching the video. I tried to go to the Article section here, could not open anything. I wanted to see if anyone had written a review on one. Something wrong with "Tutorial and Resources"....? Everyone I tried to open said "We could not locate the item you are trying to view. " And Travis is on vacation!!!!