It was easy to assemble except for the fact that the instructions are a little cheaply printed so I didn’t see that the pneumatic arm had girders to attach to.  Found the pieces at the end and then spend a painful half hour trying to fit then without dismantling the whole thing. Theres loads of space under the bed. The upholstery is okay, pretty standard nylon weave. The whole thing feels pretty sturdy and is re-enforced with plenty of brackets and girders.  Would buy it again.