In 2.79 with my scene units set to millimeters and Unit Scale set to 0.001 I never had a problem, now with 2.8 I need to change the scale at export to 1000 to get a correct size model after importing into software that cares about scale, namely my 3D printing slicer. From what I understand, Unit Scale in the Scene properties only changes the reporting of the units now.
I've tried all manner of combinations to get the reported units to marry up with the exported size without having to scale on export but with no luck.
Is there a way to setup the scene so that I don't have to scale at export, or is this something I just have to live with??