the unit I receive from Amazon quit work just before the 30 day return period . I leave on vacation just after it arrive and do not really start to use it until I get back . I ultimately end up get a new unit direct from Garmin . my main reason in note this be that the first unit arrive obviously have be open previously -lrb- light dust on the rubberized grip ; user manual crease , etc. -rrb- while I understand that people return product and vendor need to try and resell they , I wish they would identify they as such . I suspect this unit get return because it be act erratic , but it be miss or ignore by Amazon . basically I think the Garmin GPS unit be fine ; I be just annoy with Amazon .