I purchase this item because I want the live traffic and also the step by step direction . the step by step direction be handy in that you can review the turn and direction in order that you can determine howthe gp be navigate you . I have be very happy with this product in that it seem to be right on with traffic delay and arrival time . however , there be one major annoying feature that I absolute dislike . the GPS have advertisement that show up that you can not get rid of . I guess that be how Magellen pay for the free traffic by sell advertisement . after a while you become use to it , but I rather not have it and I wish there be a way to turn it off . another issue that I have experience be that in area of tall building once in a while , like downtown LA , the gp seem to get lose due to lost signal . but in all , I have be very happy with it and it seem very accurate .