This is a great unit it does have a learning curve to it ...
Ron Harrison, Amazon
23 February 2015
Summary: This is a great unit it does have a learning curve to it but the garmin support is some of the best I have ever delt with very patient and able to help. I use this unit in a RZR running in the Arizona desert.
Summary: Unit is well built and works very well. However, the process to install, unlock and authenticate additional maps (Garmin City Navigator in my case) is unreasonably difficult and required a few hours of time in Garmin forums and some help from Garmin support to get sufficiently detailed instructions.