I've only been sleeping on the mattress for a few weeks now. So far I love it...the box came quickly and was easy to unpack and "assemble." As soon as I'm convinced this is the mattress for me...it'll be getting a 10!
I have had insomnia on my whole life and find it very difficult to sleep in a bed with someone else. My husband and I have been sleeping on the tuft and needle mattress for a week and so far it is extremely supportive to my back and helps me sleep as well as possible for my extreme situation!
I slept like a baby the first night, the next couple of nights the mattress seemed hot. However, after about 5 days I was totally convinced that I have made the right choice. This mattress is sooo comfortable.