I recently bought Montana 700, and I have to say it's a fantastic GPS.
However, there is one issue that needs addressing - and that's the color of the route in the map.
It's sort of a teal / turquoise color, which is not very visible.
It really should be either customizable by user - or red by default.
It would only make sense, since the route color in Garmin Explorer is red.
I hope future firmware updates will have this issue fixed.