I have used this mattress for a long time now and I absolutely love it. The mattress comes vacuum sealed and compressed but all you need is a pair of scissors to open it up.. it is quite heavy so you may need a second person to flip it over once you unroll it from the box. It only takes a few second for it to decompress once you remove the plastic wrap. 
The mattress is firm but very comfortable. you may find yourself tossing and turning less at night and body heat build up is less than other mattresses. I would not hesitate to get this product again if I needed to.