There are many things about this pillow that puts it in a 5 star category for me. 1) the fact that it comes with a pillow protector case. 2) it has an abundance of stuffing. 3) it has a zipper on the pillow itself so that you can adjust the amount of stuffing that you prefer.
It more than fills a queen size pillowcase(see picture). 
I am a picky pillow person, and I highly recommend this pillow!