Very sturdy and great to get the stands in cases. But they get very heavy. Each stand is 25 kg, and the case is 27.5 kg, for a total of 77,5 kg. And with only one handle on each side, it's not easy if they need to be carried or lifted in and out of trucks. It would be a lot easier if there were 2 handles on each of the short side, as well as one on each end of the long sides.
Good to have the wheels, but they are still VERY heavy. And as they are 2 meters long, it can be tricky to roll them around tight spaces.