A great, compact navigator with lifetime map update fature. The lifetime map feature really pays for itself over time, and Garmin is very good about publishing updates yearly so that you have the latest road information and less chance for making a mistake on the highway. The updates are easy to load onto my garmin as long as I have a high speed internet connection. I also enjoy the "voice" which is clear, articulate, and very easy to comprehend. This is especially important to me as I have a degree of hearing loss. Processing Speed Very adequate, especially if I change course, this GPS responds fairly rapidly so that I can proceed without delay. Map Quality & Accuracy I've used this in my auto, primarily in the northeast all the way to central Florida and have never had a problem with accuracy on major routes and secondary streets. So far, I have not gotten lost or been rerouted to some place I don't want to be. Of course, I do carry an old fashioned road map along wherever I go just in case, bad weather, satillite reception is down, or an unexpected malfunction. But so far, this garmin has never failed me. Ease of Use This is a very easy, basic GPS to operate and follow. I won't leave home without it when traveling anywhere that I am not familiar with the route.