Couldn't fault this unit (I forgive it for sending me to a bare patch of ground instead of a Travelodge in Clacton and "through" a dead end street in London!)
It worked beautifully in the Netherlands, Belgium, France, UK, U.S. and Canada. The live traffic info really helped in and around London saving me so much time. Navigating the highways in Los Angeles was child's play.
My only reservation: this unit does not have Australia and NZ like its Antipodean cousin.