The materials of the frame and all the nuts and bolts, the plastic covers (for corners) and the headboard attachment brackets are of high quality. The metal bars are heavy and seem well constructed and sturdy. The only downsides are: 1) difficulty of assemblage; 2) not all 10 feet may lie flat on the surface of the floor if your floor is not perfectly level (I don't think it's a deal breaker if most feet can lie flat and flush against the floor, since the mattress and foundation will be heavy enough to keep the frame down).