I feel like this topper would be great for someone who likes a very squishy, soft mattress topper. It was meant as a mattress topper (note: it is definitely just a topper) for my son's bed (we had another mattress from Wayfair on the bed, and you could feel the slats underneath) but he and I both were so uncomfortable on it. I will try to put it on the bottom of the other mattress to see if that works. We prefer a firmer mattress. 
4 stars because it doesn't have a weird smell and it seems good quality. Just way too squishy for us.