DD is 6-years-old, 46 lb. When she is in my car, we are driving longer distances on a notoriously dangerous highway, so I've kept her harnessed in a Nautilus and likely will for a while longer. HOWever, it is my husband who usually takes her to and from school each day. He switches vehicles frequently from his work truck (with full back seat) to our old Subaru Outback. She has been in a Graco Maestro in booster mode for about 6 months. In terms of proper posture, etc., she has done well with that booster, but she can't at ALL buckle herself in and it takes her a very long time to UNbuckle. The frequency of car changes and the fact that he can't walk her in to school anymore (and therefore needs her to be able to unbuckle and get out of the car more quickly in the drop-off line) is making him really want a backless booster for their daily commute. How do you feel about this? I FEEL okay with it right now, but I get a little skeeved out when the roads are snowy and may ask him to switch back for winter. I'd love to hear your input. Thanks!