fairly easy to use out of the box . I be lucky enough to know someone that already have one . it be confuse that when you enter a address that to save it you have to hit do , if you do not you will not have the address again if you have intend on store it . you have to remember that the global positioning system be not 100 % accurate . when use it to go to a relative home I need it because it be a fairly complicated area , once there it announce the house be on the right when it be on the left . so make sure you check the address . it can be off . also if there have be recent construction it might not be update to tell you where the entrance be on a highway . the nice thing be if you take a wrong turn , the unit announce `` recalculate '' in a rather upset voice , and then give you another route . it will not necessarily give you the fastest route , but you will get there .