In entry level gassers they may be an option, most however do. My previous dp had levelers but they weren't automatic, you had to watch the bubble.(no big deal) My present coach is fully auto, press ON, press Auto, it's done.
One caution is your rig must be "somewhat level". If your too off side to side the coach may tweak and you can pop a windshield or the seal. Too off front to rear and your rear wheels can come off the ground. Those are the only thing holding a coach, on a dp it's brakes and on some gassers it's the transmission praul.
Be careful as I've had to have 2 windshields re-sealed.
I'm partial to dps. A gently used dp of a few years is imho a better deal than a new or newer gasser.
