I have the HWH ones and have found them quite good so far. Not sure exactly what you mean by 'fully automatic'? The ones I have use a panel with indicator lights to show level. I deploy the front jacks, then deploy the rear jacks. Check the level lights which show if further adjustment is needed, usually a bump or so on one of the buttons brings it level. I guess that is not completely automatic but it is rather simple, and takes literally less than 2 minutes time.
I've read about systems that determine level and find it themselves, is that what you mean? Not sure I would pay any extra for that based on my experience with the HWH ones. I usually leave things a bit out of level to help rain run off in the direction I want anyway.