Its totatly better than 3Q, it stays in the middle of line, don't pull the steering wheel to check if You are there, if on side of road is no white line - its ok, it recognizes road any way. I love it. Already thinking to add this camera to wife's Kodiaq too, there is no camera at all! Also if in front car changes the lane, it reacts faster than 3q, because with 3q the radar holds that car speed which changed lane for too long..