After many years or installing a variety of curtain rods, I've gotten used to all sorts of hardware and installation process, and I'll have to say this was pretty easy all around. I was glad I read through the reviews first, to know that I would need to part extra sets of poles out to create the extended pole length. For example I needed a curtain rod to span about 170" for two windows, so I ordered 814-703-8458" double poles and received (4) which I parted out and put together to span the entire distance. After using the proper hardware, I was very happy to see that the rod didn't sag at all! Typically for something this long I use a hack involving small diameter wooden dowels inserted inside the curtain rods to keep them from sagging, but not necessary at all in this case! Great quality and I would definitely recommend this product to a friend.