5 star , no question ! very user-friendly , extremely functional and now quite affordable . get one and you 'll never be lose . I research other brand too but decide to go for Garmin . I choose the c320 over the c340 because it get the job do for a much lower price . unlike the c340 which have all the map load , the 128mb drive sufficient only for a small area -lrb- sometimes only 1-2 large state such as CA -rrb- but I get a 1gb drive which be really inexpensive these day and have alomst the whole US map on it . and because it have to search thru that much less info , it be also faster . my only gripe be -lrb- and it be still not a big deal -rrb- that the built-in pous -lrb- point of interest -rrb- database be a bit dated -lrb- I purchase mine in Dec 2005 -rrb- . there have occasion when my gp take I to a store or a restaurant that be no longer present . but when it come to get from place a to b , I can move around with confidence !!