The box was very compact - good for a person that wants a king box spring but cant necessarily get one up and down a stairway or in and out of an apartment.  I put it together very quickly (within 20 minutes) with my husband.  It seems sturdy and will be even more sturdy with a bed frame.  I think it will be great for my guest room.  There was a great wrench included to help put it together.  I like the grey material around the outside.  I makes it look very finished.