I can see why people be poe about this . I be give this 5 star base on the quality of the product , because it be very nice , and not for the sneaky marketing scheme of Garmin , which would get -5 in my book . the base map that come with a Garmin GPS be rubbish . not just with respect to it not have any city street but even the lake be all deform and inaccurate . while motor out of we dock the gp show we go over land ! City navigator fix all this and it quite impressive . so ... this software be a ABSOLUTE MUST HAVE if you be go to buy a Garmin mapping gp . this be something that Garmin neglect to advertise since they know you will have to buy the mapping software once you buy the GPS . luckily I pay half retail for my gp unit so I be not quite as tick . the software unlock process be unnecessarily absurd as well .