Last week my wife and I rented a car in Baltimore only to discover that my Cobra 4500 decided to take a vacation also and wouldn't boot up. Since this was our first time in MD we were desperate and asked directions to the nearest electronics store. I didn't have time to research any units since the Cobra worked well up to this point but I knew Tomtom's name and decided on the ONE. Anyway, it worked nearly flawless to Williamsburg, VA and back to the D.C. area with only a few minor setbacks. When we got back to Texas I realized that the reason the Cobra stopped working was because the fuse came out of the cigarette lighter so it wasn't getting any power. Anyway I fell in love with the ONE and the Cobra is now in it's box in my closet. 
