this be my first TomTom GPS , I buy it to replace my older Garmin GPS . this TomTom do not pronounce street name and highway name correctly , that can be confuse if you be not familiar with the area you be drive in . also , the street name turn by turn be only available on one of the program voice -lrb- susan-american English -rrb- there be many voice to choose from for free already program on the unit . I do not like the window mount , it be difficult to mount the GPS unit onto the mount , and the mount often fall off the window . during a recent trip to Phoenix area , the GPS would tell we there be a quicker route off the freeway , we try it once and it actually take we onto a side road , through multiple traffic light ... that take we longer ! I have have my unit for only 6 month , and the display screen be freeze . talk to several people at customer service be frustrating , a couple of people there do not know enough about `` customer service '' just give I vague answer and the runaround . finally speak to somebody that know they job and tell I to return the unit , and they 'll replace it with another one , not new-refurbished ! however , they do not want the unit send back USPS , only Fed ex or UPS which be quite expensive . I be take it back to Costco where I buy it , receipt in hand all the bit and piece in the box and exchange for a new one ... . Garmin be more reliable and easier to use . the feature I do like be the lane guidance and display screen be big and easy to read .