I have kwikee (two steps) going into my 2005 motorhome. They work correctly. My problem is a friend of mine said he thought they are broken, he thinks because they move a little bit down when you step...
y rig has that same movement, OO bought a little adjustable floor jack that stops the motion. Does your friend have a rig that doesn't move or a car that doesn't move? Most vehicle have a little movement when a grown person enters, especially on a two foot lever out the side of a motor home.