Summary: I bought the Zumo two years ago for about $400. I bought the gps, the case, and the mounting gear with a power cable. I don't use this unit much since I don't ride my motorcycle much but over the years I've noticed some serious issues. For one, the maps are terrible. Whole streets are missing and these are not new streets. The Garmin that I have in my car is six years old now and has better maps. The directions are not so good either.
Summary: So the unit came in a timely manner. Downhill fron there. Updating/unlocking software/unit is a time-consumeing and confusing process, requireing about three sets of an infinite range of numbers. There goes two hours. Spacers were not included with the basemount, so that had to be jury-rigged with lock washers. Will they hold? Another hour.
Summary: This unit uses a usb plug for external powering. It is designed for motorcycle use. The usb plug in is located on the back of the unit and I don't see any way it can keep water out of the pulgin. So I returned it and got the 660 instead. If you ride in the rain it's not for you.
Summary: I bought this to replace a Zumo 450 that was badly flawed from the day I got it. I annoyed me to have to spend so much money to replace something a year and half old, but I needed it desperately. Cons --The screen is really small --Unlike previous generations, the controls are all touch screen. I liked the real buttons on the 450 --There is only one view in the trip computer.