Read the installation guide, these things are a ***** to install. A lot more involved than "nerf" bars but that makes sense since these are actually supposed top provide protection off road and support the weight of the vehicle, not just the weight of fat uncle Fred
Like the look. I'm using the door sill for a step right now on exit in order to save the leather thigh bolster on the seat--don't want to just slide out. Every 5-year-old SUV I've seen (including the 9-year-old Pathfinder I traded) has had worn out/cracked leather there. Having a good set of rails would help.
2011 GC Limited 4x4; Blackberry Pearl w/ Light Frost Beige; 5.7L HEMI; 20" Wheels; Tow Group IV; 730N