I installed one on my last truck because I could, and I enjoyed having it. It just took care of itself and kept me level with any load.
The only downside is you had to be quick to disconnect the 5er after you used the landing gear to raise the pin box, or the bags would deflate before you could open the jaws and pull down on the pin. The remedy was to just lower the landing gear to the new level, but sometimes a pain it the butt.