This is a nice box spring. This is my first time purchasing a metal box spring and I will definitely be purchasing another. The step by step wording for the directions was confusing but the parts diagram is laid out well enough to copy the pictures. I put this together myself in just under 45mins. It could definitely go faster but again the directions. My suggestion would be to Nate up all the pieces 1st the assemble it makes a world of difference. I have a hybrid mattress that seems to be fine although the cross braces are pretty spacey. If anyone is looking to have additional support could definitely get some wood planks to fill the gaps but otherwise a worthy purchase. Feels like it's going to hold up. No need to replace wooden box springs.