The bed looks fantastic and was relatively easy to assemble. However, I ordered a king, and believe the weight of my mattress has lead to some considerable unsturdy-ness and deafening squeaking when I get up from, or move around on the bed.

I frequently fall asleep certain the thing is going to pancake beneath me, but in fairness, for the value, I got as good as I can get for a metal frame + memory foam mattress setup. 

TL/Dr - Go with something sturdier if you have a heavy king mattress, otherwise, I can see this frame working just fine for a Queen-Twin setup.