For the money excellent! I'm an older lady 73 and i put this together easily by myself. The gap between the two halves is strengthened by a cross board. 
and is very solid. After I tightened the screws and bolts. No squeaks.The height allows
under bed storage. It's very firm base for my 12" memory foam bed. It's nice looking. If you are into simplicity and comfort, just the best one could do.