My husband recently picked these up at Costco. I was a skeptical at first, I liked the pillow I had. After he slept on it a few nights, then my kids slept on theirs, I decided to give it a try. After the first night I wasn't too impressed. Especially after I found out how much they were ($59.99 for 2 king size). I have to admit, after a few nights I began to love the pillow. The first few weeks we put a pillow cover on them, maybe that is why it took me a bit to get used to it. With the case on it was very firm, no squish. I read on-line that you shouldn't put a case on it... so we gave it a try and it was such a better night sleep. Still firm but contoured to your head much better. Better squish factor ;) I really like that the whole pillow is machine washable and able to go into the dryer (on low).
I have seen them online for $69.99 for a single king size and to me that is insane to spend that much. I would recommend waiting for them to come back to Costco when they have their two for one deal.