Good construction, holds well even without the corner, with a nylon curtain. With a fabric one, you will need the corner.

Very good and high-quality rod. In combination with the ceiling support, it is completely stable.

Very good support. You should also buy the Grekon Roof Mount Arm, which fits in the corner so it doesn't turn with the weather like any other rod. Unfortunately, the support is sold separately, which is why I give it 4 stars as I believe it is an incomplete product on its own.

It does what it promises. It seems quite sturdy, but obviously it requires attention since it only holds on to the 2 ends. It easily lifts the weight of the curtain, so if you are going to have a heavy curtain or small children who might pull the curtain forcefully, it may not withstand. In this case, you can purchase the additional ceiling support.

It has been installed in rental rooms. At first, it seems quite stable, it will show if it will withstand the season