Aperture has remarkably powerful file management features which have yet to be duplicated.
There really isn’t a good way to convert Aperture adjustments to another editing system. LR doesn’t do it, nor does anyone else really.
There is a company that is working on a translator for a wide range of applications and attempt to convert a subset of adjustments (cyme.io), but I have not tried their beta so I cannot speak to it at all.