I receive this device and update it be map and software right away . I have use my cell phone and a old Garmin GPS from work to home , both of they give I the shorstest and quickest route . I want to give Magellan a try . Magellan add a extra 6 mile -lrb- my regular trip be 31 mile -rrb- and a extra 15 minute of travel time . there be no traffic problem and the route be clear with no road construction . the route be a famous Chicago area highway and well established major road . at one point there be only one road that lead I to my destination and the device keep ask I to make a U turn !!!! this be a bad device with bad route . I wish I could return it for a refund . I be very disappointed .