Mattress came fast and was easy to "install." I didn't notice any smell that was horrible and soon the new smell went away. I slept on it the day it arrived. It has the feel of posturpedic. ( too bad I don't know how to spell) It is firm like it should be and I topped it with a nice mattress cover. I am glad to have a shallow mattress. I sold my really thick mattress. There's no need for all the height. 12 inches is lovely.