This thing is amazing!  I have the 2 panel version.  The instructions were the best and came with excellent tips on installation.  It went up quickly.  My house does not allow to install on stud, but with the included anchors it is extremely strong.  I have all of my cast iron pots and pans on it and it is holding up great.  I can't say enough about how well the company wrote the instructions.  Very clear and understandable.