Our favorite quality in this bed is that it Does Not Sleep Hot. It has good bounce, but is also good at pressure point relief. The bed is on the firm end, but is still comfortable for my petite wife. It seems like the bed is quality material and should hold up for a long time. My wife is comfortable even as a side sleeper, but I have broad shoulders and feel like I don't get enough sinkage in my shoulders to be straight on my side. It's comfortable enough on my side and I sleep mostly on my back, so think I can live with that at the moment. We replaced a sleep number bed with the king size GhostBed and consider this a major upgrade so far. My lower back definitely feels better in the mornings.
The GhostBed has been a fantastic mattress. Very comfortable. My only complaint is I would prefer it be slightly less firm, but I think for my most people it will be just right.
We bought two of our kids a GhostBed and they both love them. They fall asleep faster, toss and turn less and we've yet to have a single complaint of not resting well. We'll probably end up getting one for ourselves too!
We got this bed as an upgrade from the traditional coil mattress. We love this bed. It was a little smelly at first. Air it out for a day and you should be good. We also got the ghostpillows. These are comfy but they still are very very strong smelling and it's been a month or more. Take them out of the casing and put them on a porch. That should help.