I bought these pillows at a 2-for-1 price, which was still pretty steep for a pillow that is no more special than one from a Department Store generic brand memory foam pillow.
I had tried the pillow and after a few days found my face sank into the pillow. Over the next few weeks, the indents stayed longer, not reforming as they should have. They did not appear defective, just not as advertised to be any better quality than other, cheaper pillows on the market.
I did not wish to go buy yet another brand pillow, so i bought some thin foam to insert into the pillow case and have not had any problems since with sinking into the pillow while i slept.