We have the BAL 5.1 system on our Eagle and really like it. It is nice to just roll into a spot, unhitch and press a couple of buttons to get level. We found ours was not setup properly from Jayco and we had to adjust which was a pain, but otherwise it has been problem free.
I have read some positive reviews on the Lippert systems but haven't seen one in the real world on a travel trailer.
One thing to consider is the type of camping you do. If you generally stay in RV parks or groomed campground, auto level will work great. If you're the type that does a lot of rustic or boondocking, the auto levelers draw a lot of electricity and don't really have the stroke to level on very uneven surfaces. If I was the latter type of camper I might steer away from the auto level, but highly recommend it if you're the former.
2000 FR Flagstaff 625D - Sold
2013 White Hawk 30DSRE - Sold
2019 Eagle 330RSTS
2020 F350 Lariat 6.7L powerstroke, Rapid Red with Lariat Sport