We had HWH auto leveling jacks on our old motorhome. After having them, I swore I would never have them again. I specifically did not get them on our new Red Hawk for that reason. Instead, I bought a pack of Lynx Levelers and a 4 pack of A- frame screw type jacks. I level with the Lynx blocks, then stabilize using 2 jacks under the hitch on the rear, and 2 under the front frame pieces. Very easy to do, works very well, no possible leaks or expensive repair bills. Also, the price is so much less. I have been very happy with my choice.
Steve