I have been using the Sensonic N580X, and the latest program version 8.10 works very well especially the junction view and the fast routing. Two function that i found is not so user friendly are the Recent Destination and Favourites. The Recent Destination function does not show you the latest recent destination and the option to sort for alphabetic order is not there. Same goes for the Favourites too! By the way does it have function to find POI along the destination we are going too?
Yup, 'recently found' is screwed up. Latest not at the top even if it's arranged by date.