Millet v. Buckwheat Bed Pillows. Reviews? Experiences?

I can't find these where I live so I have to order blind. Does anyone have personal experiences I can draw from.

i never heard of millet pillows before.. i spose it would be a good pillow..i ordered buckwheat from QVC like about 15 years ago and its the best invention since toliet paper.. i kid you not you wont never wanna foam or feather pillow never again.. millet id be scared birds might eat it.. nothingsfunny.. i ordered one cause i got a whip lash in car accident..

Microwaveable Flax Seed Filled Neck Pillow in Marine Blue from Relaxation in a Bag $31.95 Flax Seed Filled Neck Pillow, microwavable, in marine blue...