Marshmallowing SD Space

On Wednesday the Moto G decided it was time to upgrade to Android 6, Marshmallow.
The install went smooth, and things work A Ok as far as I can tell, some items moved to a different place and whatnot, the usual stuff after an update...
For instance, to disable Cellular Data, now there is an extra confirmation dialog that wasn't there before updating to Marshmallow.
The 8GB internal SD card its getting really, really cramped...
With Marshmallow there is a new option to use the removable/ external SD card as an internal one, in the process you sort of loose the internal one, but, you also have to format and marry the SD card to that particular phone.
I'm currently thinking what to do about that...