I'm using it with the Westcott 3m GreenScreen
Works perfectly for Me
Westcott Green Screen (300cm, 270cm)

I also use the system with 3m paper rolls. But not professionally.
For me it is absolutely good, find the pipes stable enough.

Yes, it works properly and fits good; we have put a heavy paper roll in it; then in the center it's 1-2cm lower.
But if you put a green screen it should work.