I had a Saturday set aside to do the unthinkable: put together this king-sized monster all by myself. I had to use a couple of chairs to brace the headboard and keep it from falling face down...and a barstool to hold it in place from the back...but once stable, it was the easiest set-up I've ever done. Of course it took me some time (doing it by myself). But it was easy as pie. Only thing...some of the letters were missing from the parts board. Particularly the big "z" washers...which you will need immediately to put together the headboard. Just remember that...and the rest is easy-breezy. And now the finished product: Rock Solid and BEAUTIFUL! It doesn't move, it doesn't creak, it doesn't shake. And once you lock those locknuts and bolts in place, that frame is like the chassis of GM truck: it does not move. The slats are pretty solid too! I really like the way they actually "snap" into place, as opposed to the slats on previous beds which come in an accordion-style cord...which can shift from time to time. These can't go anywhere, because the weight of the mattress (and you) are holding them in place. I ordered the Dream Cloud Premium King Hybrid mattress (107 pounds). I weigh about 190. So the 900 pound weight max for these slats is not even a factor..(even if I had 2 or 3 two-hundred pound people join me (NOT). Overall, I think this is one of the best bedding products out there. I even liked the hidden parts and tool chest inside the headboard: it's velcro'd in there. Thought I was ripping the cover off the back of the headboard, because of this red tape attached to a bag. Turns out, it was supposed to be pulled (from the bottom up) to reveal all you need to put the bed together. And once done, you simply put the velcro cover back on. They thought of everything. I love this bed. And I give it a 5-plus!