Well usually I would be posting right now that I ordered the printer
But I just don't know if there is any improvement. The self leveling plate looks like it will collect a ton of resin around the springs. The way the plate locks to the rail seems like there is no good way to grab it.
I know someone who ordered a Saturn 4 printer with the tilt vat. So I'm just going to hold out and see how his stuff turns out. I can even send him supported files to directly compare.
The Mars 5 Ultra is faster than my Mars 4, but while that is nice, I just don't really care how fast it is. The Mars 5 lets you print 8 test pieces at the same time with a different exposure on each one. This seems cool, but not alone worth buying a new printer.