We use Andersen levelers and are happy with them - but we have a towable. I recently installed a piece of technology, though, that really changed how we go about leveling and I think it would make an even bigger difference for a motorhome. That is:
LevelMatePro(I ordered mine from Amazon.) Once you level the rig your normal way (we used a large carpenter's level and two-way radios) and calibrate the system, you simply use your phone to check how far out of level your RV is on a particular site. The LevelMatePro tells you which side needs to come up - and by how many inches - and at the same time whether and how far the front or back need to come up. I now know exactly how much each set of wheels or the front landing gear need to up or down. This means I could go back to carrying several thicknesses of wood and get exactly level if something happened to my Andersens. The system is designed for either towables or motorhomes.
Rob