I've begun using it, planning trips around our new city of Bozeman MT, and I was left wondering if my problems with it are due to using an iMac vs. a PC. Bike paths suddenly disappear when route planning, no +/- control buttons so zooming/panning becomes awkward. It could well be due to my lack of familiarity and limited time I've spent with it. So far, more frustrating than productive.
Never even looked at it, as it would just be a complete waste of time for off road use.
No system can predict what the ground conditions are, or what power assist level to use for a given off road climb. I'll pass that one, and just get on with riding and enjoying the bike, without yet another distraction.