I've looked at these in the past. Nice, but expensive. They don't have the power and ground clearance I need for the work I need to do on my property. But for what they are made for, they look like they would be a very nice piece of equipment. Here is a short video on them.
Never owned one (too spendy for my budget) but I've spent many hours running them, and a few maintaining/working on 'em too...these and their predecessors, the Steiner tractor (same family designed and built/builds both) Built about 2 miles from here. Pretty handy lil buggers for the right application...pretty overpriced for just a mower...unless you have some pretty extreme terrain. We mow some areas at work with a 4300D that is more ATV territory than anyplace a mower belongs. They make a ton of attachments for them...can do almost anything that you can do with a full size tractor...just in mini scale
Is that yours coming down the line? Was that at the old factory or the new one? They are now doubling the size of their new factory space...which was probably 10 times what they had originally. They started advertising more internationally and business exploded! Seems there are quite a few small farms (Sweden I think it was) that will go together to buy a communal tractor to farm extreme hillside property. Japan was another big growth area too IIRC.
Pretty sure he's seen/had his hands on all of them, Gasifier. I was going to chime in on this one but 166 has me beat for sure. He was who I called when I couldn't figure things out. Very good machines. Expensive, but very versatile and durable as well.