Ultimately, I have but then slammed and do not regret it so far.
Yes, in building you get black fingers, because the screws are strong oiled. And yes, sometimes I had to screw again slightly loose in order to force the other end of the part under force into the screw hole. The holes are not probably be 100% accurate or the material had warped slightly. Some screws are provided as countersunk screws, but others do and are accordingly out of the frame, and one wonders why this is so. But I see no danger of injury. And in the end everything was firm and really stable. When slatted I had many slats with a rubber hammer hammer in the frame, but because they sit now super-tight. The "slat" are simple boards at a distance, as she does not recommend some "modern" mattress. Can adjust to anything, install and no other slatted frame, and can give a lot of the slats at 140s-width bed by the soon either. So you have rather a hard bed like.
The bed is with us a guest bed, so far there has been each used by just one person and there were no complaints, there is nothing broken or bent. I do not know what happens when two people in it to have fun. But honestly, I have seen a lot windier beds for a higher price. And on the other hand, I expect from a bed incl. Slatted frame for around 60 euros and no wonder. Those looking for a bed for everyday use and corresponding quality expected just needs to grab a little deeper into their pockets. Quality costs money, which many people forget. 4 stars so for an amazingly good price / performance ratio.