This is my first king size bed and I was excited to purchase this. I put together myself just under 2 hours. Wasn’t hard at all. The drawers definitely took the most time,  But with a little music time went by quick.  I have a 12 in mattress and there’s no weird gap by the headboard. I’m 5’7 and with this bed and with a 12in mattress my feet are comfortably on the ground and I don’t feel like I have to lift myself off the bed which was a major concern for me. All in all this was a great purchase!!