Excellent GPS FREE with Continental Tire Purchase

I had been in the market for a GPS for over a year and have borrowed friends' GPS devices to see how well they work.  By a quirk of faith, I needed 4 new tires last September and found that Continental Tires was having a special.  Buy 4 tires with total price over $500 and they will send you a free GPS.  Within 3 weeks of sending in the coupon I received the Navigon GPS...for free!
Having given it a good road test of almost 2000 miles all over Florida, I must say that this GPS is by far the best one I ever tested.  The graphics when approaching a highway intersection are incredible...it's exactly what you see looking out your car window.  
The voice instructions are so well organised that most times I just place the Navigon in the cup holder and listen to the voice to tell me where to turn.  So no need to take your eyes off the road...much better than the mother-in-law in the back seat telling you where to go.
You can upgrade your GPS with a listing of all Zagat reviews for restaurants and hotels.  This is very nice since it gives you listings of price, service, food, phone number, etc., making selecting a place a snap.
Customer service is outstanding too.  I highly recommend this unit.