We had purchased 3 for our houseold at Christmas and are happy we did.  For the most part the directions are on que, but we have found occasionally it doesn't take us the most efficient way.  We like the "recalculating" feature and have found it to be very helpful.  It stores addresses and does more than what we anticipated.  We would recommend to take the time to read the book and work with your GPS before installing it in your vehicle.  We were anxious to get it up and running and we kept finding more great features that it offered.