The SYS Roll is brandnew so I didn´t had the time to test it. Next week the new job starts and I am eger to try it out. I will share my experience. But at first glancethe system seems good. The profile is small and the 4 wheels let it easiley turn around. The handle is in a good height an you can open the boxes because the let space between the handle and the systainers. When I ordered the SYS Roll I tought it is made of aluminium, but it is made of plastic. The specs says that I can handle up to 100kg. I hope it will work. But if it is designed for construction work, i I think it will. And also it is made of really sturdy plastic and made in germany. A little bit heavy it is. Detaching the boxes is a dream. Turn the green switch and ready. The wheels are also made of full platic. But iut should not to be to hard to replace them with rubber ones.
To carry the boom and the umbrella I have already modified it.