I wanted to love this topper...
I'm giving this four stars because the quality and price of the product is great. The one star deduction is because of my personal experience, which is so subjective.
I have a very hard mattress (we jokingly call it "the slab") and my back loves it. But, sometimes my pressure points (hips, shoulders) would ache in the morning, so I thought this would be perfect. It's just too much foam for me. It took a solid two weeks to get used to the topper, and during that time, I had massive back soreness. Since then, I have gotten used to it but I feel like it sometimes still gives me soreness and it is a little warm, if you are sensitive to that. The foam has stood up great over the past two years, though, and I'm itching to replace it, but really don't *need* to.
I have "Slumber Solutions Gel Highloft 2-inch Memory Foam Mattress Topper with Waterproof Cover" on another bed in my house which is thinner and has the egg crate texture and I love it. When I replace the 3 incher, it will be with this product.