I like the idea of turning a wall into a display instead of a museum, once I got the shelf up I was able to use it like I wanted.  However, I found it really hard to install.  There wasn't a guide for drilling the holes and after measuring, leveling and drilling, I found I was still off by a hair and couldn't get it to latch properly to the hardware.  One side slipped off the hardware and down the wall after a couple months and left a big scratch that required repair and repainting.  I'll get a pro to install it next time.