I read all the reviews for this mattress several times before purchasing it. Everyone said it was like sleeping on clouds. Well, if clouds are made of concrete, they are spot on. 
This is the hardest mattress I’ve ever owned, and I’m not sure why it’s considered plush. It’s definitely a firm mattress. Very firm!
I haven’t had one morning where I didn’t wake up without pain. I literally have to crawl out of bed. My nights are spent tossing and turning, trying to get comfortable. 
One good thing is it did inflate nicely, especially on all corners. It does look like it will last for a long time. However, I don’t know how long I will last with it.