as a online shopper , I rarely make impulse buy and this be no exception . I do my research , read every review and finally pull the trigger on the xl335tm . what a great purchase it be ! I use to just use Sprint telenav from my Blackberry and it be a joke . the frustration of lose signal in downtown Chicago become too much . I be yet to lose signal on my TomTom . I prepare myself for a few hour worth of download time with the software and it be as expect . it work fine on Windows 7 and be so simple to install . once that be do , I take the ac cable that include live traffic update and hit the road . the product be easy to mount , easy to use and the traffic update actually work . the GPS be easy to remove from the mount if you want to hide it and it provide everything in a easy way . for the price and reliability , this product can not be beat .