Everything about it! The ease of ordering and delivery. The responsible attitude of the company. And finally, how incredibly comfortable this mattress is!
The bed is so firm it is causing hip pain. We have slept on it for 3 weeks and I keep hoping the pain will go away but if it doesn't in the next week or so, I may need to return it. It is not fun to go to sleep feeling fine and then wake up several times in the night in pain and hurt for the first hour of the day....but my husband has not had problems with the mattress.
This has been the most comfortable bed I have ever slept on. Of course it took a few weeks to get used to the firmness of it (back and neck-just like any other bed), but I love it over all. My husband also gives it 5 stars.
I am happy with my purchase. My daughter sleeps later in the morning which makes me feel she is getting a better nights rest. Children grow while sleeping so its all good!