I have one on my trailer and I love it. If you lube it up good it always sets firm when it takes a load from the trailer.
Others have stated that theirs did not set firm I have not had that problem with mine.
I have had it on the trailer for about 2 years and would not be without it.
Bruce & Cindy
Rambo & Chuy (Chihuahua's)
2016 Jayco 23RLSW
Blue Ox Sway Pro
2014 Ram 1500 5.7 Hemi