The Late rust ansich not bad, but the middle bar was good three centimeters too short for me! Three centimeters are a lot, so the slatted threatened by falling in a normal bed in the longitudinal direction. So one centimeter wide spacers must be used. But that can not happen without other screws and one must also once get somewhere, just two pieces of wood or similar.
Conclusion: It's cheap, but also quite tricky to build. If you still mitrechnet the time needed for the Grab the spacers and screws, then you might as well resort to a more expensive, but better quality slatted frame.