LOVE air leveling! We had a 2007 Winnebago Adventure 35L before our current coach, and while we loved the coach, leveling it was an "adventure" with the jacks. It took a while to get it just right, because the coach would sense it was "level" when in fact it was not, and we'd have to fiddle with it manually. The first time we went out in the Country Coach, we pushed the button to level it by the air bags, it did it's thing, and we checked it and IT WAS PERFECTLY LEVEL in less than 60 seconds. Love it! Any levelling system will have challenges when the surface is extremely out of level and can only do so much. Higher end parks with the bigger pads tend to be more level, and we no longer do much dry camping out in the middle of nowhere with a big coach.
John & Cathy Lamb
45' Marathon XLII