Overall this frame was easy to put together and feels sturdy after two weeks of use.  No noticeable noises when moving around on it.  We were looking for a basic, affordable, and sturdy king bed frame and this frame fills all of those needs.  Our Avocado king mattress warranty requires slat spacing of less than 5" and at least one support leg, which this frame has.  There is one support leg located in the center of the frame, maximizing the storage space underneath (as opposed to frames with multiple, staggered support legs).  Our only complaint is that although it has rounded legs, like we wanted, the frame is slightly larger than our mattress so the sharpish edge at the top is a bit worrying for our toddler.  Not really the frame's fault, just make sure you measure your mattress accurately.  One other note: the brackets that came pre-attached to the legs seemed just a little loose.  I didn't notice this until I had most of it together and had to take it back apart to tighten them.