For the price point, you can't beat it. It's firm but at the same time soft. You can of course find more comfortable beds, but you'll be spending a ton more.
My wife and I have shared a full size mattress for 8 years because we couldn't fit anything bigger up the stairs. We decided to get a bed in a box to give ourselves some more room. I have also had back problems for several years and I listened to my brother's recommendation to buy a Ghostbed mattress. I have been very pleased with the product. My back is very supported and I finally have room to stretch out in bed.
I've been sleeping on this mattress for about a month now and find it extremely comfortable. It does take a little getting used to as it initially feels very firm. But I wake up well rested and my body doesn't ache. When I sleep on my side, my hip doesn't hurt because the mattress forms to my body - supports my waist nicely so all the pressure isn't on my hip. I love that my husband and I (and our pets) can roll over and move without the mattress moving. I am sleeping undisturbed and it's wonderful! I'm very happy with my mattress so far.
To firm for me. I can feel every pressure point in my body being triggered. May be good for some but I have bad arthritis. If you like a firm mattress, this may be perfect for you. As for me, I’m still debating keeping it or not.