To be honest, it's a toy. A friend recommended it and MrsC suggested we might get one. This was just as lockdown was starting, I'd had a bonus from work and it seemed like a good idea. It will be most useful for some of the recipes we make for re-enacting demonstrations. It can be easier to get whole barley than barley flour at times, for instance.
But mostly it's a toy.
I will keep the panel informed it we do find any real advantages.