So, I've made it from Burlington, Washington to the Canadian border without turning off Autopilot in Friday evening traffic (about 50 miles, including some pleasant winding interstate). As described by Subaru LKA "...can gently guide the vehicle back to the center of its lane if sway is detected". It sounds like it only corrects for small deviations rather than actually completely steering for you? Is Subaru under-selling it in their press release (which would honestly be sort of amazing)?