Not the worst thing in the world, but definitely not what I expected. It’s a shame that it isn’t explained more in the description and there is not enough of proper pictures. 
Memory foam in this pillow it’s just a very thin (around 4cm) sheet put in the middle of the pillow. You can even open the pillow and take it out. Which I guess is a good thing because you can replace. But you can barely feel the foam in between cotton filling over it. 
I don’t know... it’s just not what expected for this price. 
Also, it’s very weird for me to see so many comments here that it’s too hard. I would say it is very soft pillow.