You can use very little filament with this and it will work great.  I've used LIGHTNING without any issue 10%.  But I'd recommend for LONG TERM 1-2% Grid Minimum with 2 walls 3 top, 2 bottom.  Elegoo Filament is by far the best option in PLA+ or PETG for example… It's a very fast print, very little filament and holds the controller very well.  You can use double sided tape or pads on the bottom to give extra premium feel.  There is a hole in the back to pass through CHARGE cables.  Put the cable in a loop, after putting it through the hole and it will never fall out.