Hydraulics-we thought they were broken but found a video on youtube to show how to make them work. They get stuck in shipping so push down on the bed frame directly above the hyraulics on each side slowly and that should unstick them. Overall it took my husband a few hours to put together and the instructions (diagrams) were easy to follow. Although the box did arrive with the top open, all the parts were included and nothing was damaged. It looks nice and l like to have the chargers/plugs on the headboard. The storage space will come in handy which is why we purchased it. After just a few days I would say it was a good value.