It changes on an almost daily basis. I don’t have insight into why though. Some days it’s pretty close, some days it’s not. I would personally prefer to have the ability to place things with numeric positioning because optical/drag and drop is just not accurate enough.
I’ve gotten lucky and had pieces land with sub-mm accuracy to where I wanted them to. But if I started and engrave, closed the browser, then tried to do another one exactly on top of it, it’s basically impossible unless you hack the UI.
Scaling is another example. If you scale or even rotate something you will never get it back the same exact size or rotation. There is currently no size, position, or rotation information given to the user. So nothing is repeatable currently, unless you make all the settings in illustrator as to scaling/rotation etc. kinda undoes the whole align via camera part of the laser though