I have been using the mattress for about 7 months. I took it with the expectation of orthopedic support and a comfortable sleep, in general, the expectations were met. The mattress is moderately hard, and my back has stopped hurting since the first few days. The filler holds its shape well, does not squeeze through and does not cause a sinking sensation. The cover is pleasant to the touch, the fabric is breathable - I don't sweat at night, as it was with the previous mattress.
What I particularly liked was the lack of odor during unpacking and the rapid adaptation of the body to the mattress. My sleep has become deeper, I fall asleep easier and wake up refreshed.
Cons: to be completely honest, the first couple of nights were unusual, especially if I had previously slept on a soft one. But then I realized that this is how real spinal support should feel.
As for me, it's a solid, thoughtful product. If you need real comfort and health for your back, it's definitely worth the money.