Two years ago I purchased a Garmin DriveSmart 50LM, I have used it about 15 hours over those two years. It has gone wrong and is completely useless now. Upon complaining, Garmin tells me I can have a refurbished one - another faulty one that's been fixed - for the cost of £45 pounds! As long as I post in my old faulty one! Great. It really is a bad product and they know they are, that's why they are so quick to offer you one of their many refurbished ones. My first Becker sat nav lasted 10 years. The Garmin product has hardly been used; it has to be poorly constructed with cheap parts.