Having just bought these pillows, I must admit I did read a lot of reviews before I decided to give them a go. Must admit though, glad I did.
These pillows although quite firm and some might say hard are in my opinion really comfortable to lie on. The contour of the pillow gives your head good support when sleeping and when you awake in the morning, it just springs back into shape ready for the next night. Your head sits in the dip in the middle of the pillow, with your neck supported by the higher of the two raised edges and the top of your head supported by the other. Because of this, your head pretty much stays in position all night allowing your neck and back to be stress free all through.
If I had one slight criticism, it would be that they really do stink when you first take them out of the bag. However, all I did, was put them in another well aired room for about 24 hours before using them. After that the smell was only just noticeable - not enough to bother me though. A day later the smell had completely gone.