My coworker here at our shop has had one for about 3 months now so we've got a pretty good feel for it. It does in fact tattoo pretty well for everything we've thrown at it but it does have a few issues. The linkage bar design seems a bit under designed to me, it's pretty touchy about the plastic screw that holds it in place. Too tight or loose and it binds needing a kick start. A bit annoying. Greasing it is a good idea as it has a lot of free floating plastic rubbing sporadically. It's also kinda loud for a rotary until you hit skin and it settles into a hum. Not just loud but a plastic staticky sound that's a bit unpleasant. The slingshot armature is a pretty cool design, though it has a small arc(like a swashdrive) due to the small radius of pivot but I really like the carbon fiber rod arm's give. The pivot unfortunately isn't bearing mounted like special techniques other designs, just a metal rod contained in the Delron housing which seems to have a lot of gap allowing a LOT of side to side play of the armature and therefore an oval(rather than linear) stroke. Goes away mostly once you've loaded it up with a fair amount of rubber bands but not my ideal choice for flexy small grouping needles. Im not a fan of the scotch yoke connector either, id rather a straight up bearing mounted conrod. The looks of course are subjective, but though I'm a fan of plastic swashdrives I prefer my machines to have metal bodies, just my aesthetics. So it is a good working machine but I think some of the details could use refining to make it more user friendly and friction free. The tube vise is made very well and the machine overall has very good quality and hardware. So overall I do like it but would like to see a refined updated version with: bearing mounted armature with a pivot point a bit further back on the frame, a conrod in place of the touchy Scottish yoke, and an RCA clip would be nice.