The auto-leveler does "find" a level point, it just may not be the best. When I have used mine, I find the coach is level, but one or more wheels is usually off the ground. I also find that it may go through several "cycles" of operation to find a level point and, by that point, it may have overextended one or more jacks and/or raised the wheels. By using the manual mode, I can better control the leveling and, in most cases, keep the wheels on the ground. I have also found that using wooden blocks under the jacks really helps.
Gary Shapiro, 2011 Georgetown 29' Class A
Dash, Molly & Lily - now at the Bridge and forever in my heart
Shadow - 4-year-old Greyhound
Hannah - 1 1/2-year-old GSD rescue