I recently upgraded the rods for my black-out curtains to the Eclipse Wrap Around Room Darkening Curtain Rod and what a difference they make!
Installation was quick and easy, you just mount the holder to the wall with the provided hardware and the rod pops in.
My only concern is that the mounting brackets are plastic, they should constructed of  metal for durability.
Bottom-line, it's eye opening how much light leaks in with conventional rods, and these rods will take your room darkening curtains to a new level!