I purchased this for my husband. I tried it out first and found it too low for my liking/what I am used to. He had some issues with adjusting to the pillow too. I realized the pillowcase had a big yellow stain on the bottom about a week after it arrived. Didn't come out in the wash. I guess I should have inspected throughly.
The cooling system is something comfortable though, therefore  I find myself quite satisfied with this product.