While I can't comment on an auto-level system...
The manual leveling techniques generally agreed to around here include leaving the trailer hitched in order to drive the trailer's wheels onto blocks on the low side to level left-to-right. Then unhitch and level front-to-back using the tongue jack.
Generally, if you have an automated system, you have to understand the underlying engineering. What were the people thinking when they designed this thing? Read the manual (2-5 times) then try it in the real world (Camp Driveway) following the directions. Precisely. Step. By. Step. Then move the trailer and do it again.
Watch for error codes, odd sounds, imbalances, etc.
Once you get the hang of the thing, take it camping and get frustrated with it all over again. (I'm a computer programmer. And I HATE over-automation.)
TT 2015 19RD "TheJayco"
TV 2003 F-350 "Montblanc" - Housebroken chore truck
Sitting in The Cheap Seats.
And proud of it!