I had a Garmin Zumo 550 on my last bike and loved it. The problem became the garmin update maps didn't fit anymore. I now use the Zumo 660 and like it but I often have trouble getting preplanned routes uploaded from Basecamp and my Mac. I especially love the "get me home" feature when I ride just to get lost! I would love to have it mounted on my dash instead of the handlebar center but just havnt tackled it yet!