If you intend to only hang something very very light, this might be all right. We hung a narrow, fairly light weight window covering from Ikea and the curtain rod just couldn't take the weight without bending. You would have to install it at an angle so that when the curtain sits on it the cloth will hang straight. So our window covering now sits at an angle because we couldn't remove it and drill more holes in the same area. Bad quality.
This is the answer for a difficult window and french door treatment. I can leave the window ones stationery and can swing the arm open for the french door one for ingress/egress to our outdoor living space deck yet still have grommet drapery panels for yearround privacy and acquistics for this great room which is a huge turret/
I love these curtain rods because they swing out of the way when I want to open the curtains. They're the best invention ever! I also like that it is adjustable to accommodate curtains up to 38" in width. Great price for 2 curtain rods!
The rods will handle sheer material out to the 38 inch spread. If you want to hang room darkening or thermal panel you will need to elevate the finial end to compensate for the slop in the pivot end and the weight of the panel. This works but one shouldn't have to compensate for sloppy Oriental craftsmanship.