Nice mattress for the price.  You do feel the springs a bit so we added a 2" foam topper and it's perfect.  It's firm enough for support but soft enough not to hurt your hips.  After buying a $1500 pillow top mattress that only lasted four years we decided to try a less expensive one.  I don't expect this one to last more than a few years but for the price I expect that.  Would be great for a spare room.  Delivery was fast and this king size mattress was fairly easy to carry upstairs and open up.