I purchase this unit use from Amazon , and it be almost brand new when it arrive ! I be expect a little wear and tear but it be perfect . I would still be happy if I pay full price for it !  the first thing I do when I receive my unit be to upgrade the firmware . this correct a few minor flaw and add the ability take detour . sound great but I have not use it yet . they just release a new firmware which fix problem where it tell you to `` keep leave '' on a road where you be obviously go straight , but there be a exit to another road .  i only have a couple minor suggestion , but be otherwise thrill with the unit . it not only get I to my destination , but all my friend like to play with it !  thing to change : - enter road name that have space . you actually need to select the `` space '' between the two name . Minor , but annoy . - the ability to enter multiple destination . this would be incredibly helpful ! I be not ask the unit to calculate all the route , but just store the next waypoint then automatically take I there . sometimes I 'll have 2 or 3 place I need to go and would like to program they at once . other time I 'll be on my way to my destination and realize I need to pick up beer for Monday Night Football . if I could `` insert '' a waypoint that be ` the nearest supermarket ' then I would be a Garmin user forever . - spoken instruction should include street name . speech technology be get very good -lrb- e.g. Sprint PCS 's Voice command -rrb- and it would be awesome to have the speak direction include the actual street name . currently , the speak direction be `` turn leave in 1.7 mile '' while the on screen direction will be `` exit 92 East towards Hayward . '' I would like to not have to take my eye off of the road know exactly which road I will be turn on . - antenna . the include antenna be ok , but I just order a aftermarket , longer one . occassionaly I will get `` satellite signal lose '' because the unit be on the passenger seat and lose line of sight with the satellite -lrb- I do not have a good place to mount the unit in my car -rrb- . now I can mount the antenna and get better reception .