My Garmin RV 770 failed in just 9 months. Called Garmin for a remedy..spoke to "Roger Jackson" whose Indian accent was so strong I could barely understand him, ended up telling me the operating system had failed, needed to install new one with "insurance" costing up to $199. Absolutely disturbing. The company I bought the GRS was entirely different, very friendly and helpful. I've owned several Garmin GPS units..this will be my last
