I only got to play one game since the lines were crazy, but the "regular" artwork is 1000x better than the super shiny "RadCalz" that were on the one in Ohio. Also the playfield looks way, way better without that shield on it. It played a lot better and faster I found.
The software has improved in leaps and bounds. Ball interaction with the popup trolls is pretty great. Lightshows are amazing. I even got multiball! Once it's finished I think it's going to be killer.
One thing I noticed is that there were a few issues - one, balls would get caught on top of the drop targets and no amount of shaking would get it loose. Also, the VUK would get weak. The latter could be fixed by increasing coil strength after a failed upkick - perhaps that will be in the finished code.
All in all very nice, visible progress. I really have to thank Jack for letting the unwashed masses this level of access to a work in progress. Back in the 90s, WMS would *never* allow pinheads to see any of this stuff, let alone interact with the public in any way. I wish more people would appreciate the pain in the ass the devs put up with. The only reason they do it is because they're real pinball fans too.