very please with the TomTom one , right out of the box it work beautifully . already charge and load with very detailed , very accurate map , it be amazingly simple to use . I be please with the speed and responsiveness of the unit . no apparent lag time when first turn on or while in use . the `` clear and accurate turn-by-turn voice instruction '' be just as promise . the sound quality be very good and the volume self adjust to compensate for engine or road noise . while I find the monitor easy to see even in bright sunlight , the voice instruction make watch the screen unnecessary . the unit have many more useful feature than I expect and I find that I use they more than I expect to . the `` point of interest '' information for thing such as gas station , restaurant , etc have prove to be very accurate , easy to use and useful . no more guess what be at the next exit and how far away . the compact size of the TomTom one be a important feature to I since it be not a good idea to leave these unit in the car -lrb- too tempting for theive -rrb- . it be small , thin and easy to carry but do not compromise screen size . as inexpensive as this unit have become along with the quality of the product , you can not lose .