Get around the problem of EEVEE’s lack of shadows/reflection catcher, and finally get your models to be much more realistically integrated with your HDRI environment. Also results in correct alpha channels for compositing over a different background in comp.
The interface is really simple to use, and a full tutorial is available at https://youtu.be/BYtDJLCFdw4
Below animation which uses this material was rendered in under 40 seconds on a gtx 1070!