For about 3 weeks my wife positively reported that it worked great.  Then she ran over a fawn.  Thankfully there was no damage to the MDX.  Maybe it just works for adult animals.  I would recommend purchasing if you have a teenage driver that drives to school.  The teenager reports that it works well.  The kids she passed in the parking lot gave her more attention than a yellow Lamborghini in Miami.  She reported no near misses with humans.