My demo has 10 days on it. No posting or exporting, 3axis only. A nice improvement in the drawing tools over XR. The 'Planes' addition is most welcome. The math seems faster, too, though that might just be my machine here. Big models seem to move around with less jerkiness. The large model capabilities are supposedly going to be enhanced in a coming update (I've read). I only managed to crash it a couple times . One thing I wish it would do (and doesn't seem to yet) is allow you to dimension the part in a plane other than XY. My version doesn't have the 'Parting tools' up there in the 'model tools' on the toolbar any more. Seems they've done away with some of the functions and moved some to other areas. Love the planes mod, though; very easy to use.