I can't tell if it makes a difference yet, as I need far more miles on the car to make a judgement. If you oftem move items into and out of the back, it can get in the way. The rear glass is so dark I don't know if it actually hides the view of anything back there. Mine is currently out of the car for the winter and/or until I make a long trip with luggage in the back. Glad I have it, but don't know if I'll really need it.