I needed to lower my existing closet rod by about 6 inches.  All the other adjustable rods I saw, only started about 18" or more below the existing rod.  This one is perfect because it's adjustable all the way up.  It's strong and has made hanging clothes much easier on me.  It has a bit of a swing but hasn't been any sort of a problem.

Pros: Great for easily lowering a too high closet rod.