I was surprised to see the box this came in. I didn’t realize it required assembly. I assembled it right on top of the bed and it was incredibly simple, easy and fast. Then we slept on it.  It does the job. Also the side rails are blue/grey so it actually LOOKS nice as opposed to a white traditional box spring. I won’t be jumping on this bed, but it’s great for its intended use - sleeping!
Highly recommend.