Very easy to assemble however it did take me a moment to grasp because it’s just all pictures. Do not over think it! It’s straight forward! My mattress fits on it nicely, the anti slip grip on four of the bars is also really nice, and the amount of space under it makes storing a couple items easy and out of the way since the space I have in my room is limited. Only four stars because I believe it’s just slightly overpriced for what you get.