Babe and I have been riding the Rad Rovers for a couple of years. They are a 4" fat tire bike so you can ride them in the dirt, the snow, etc. We take them with us when we're traveling so we've rode them in many states, all the way up to Maine and back. Andy and Sherry have them also.....ride them on the beach.
The Rads are a Class II ebike so they can be rode on any trails that a regular bike is allowed. They're not considered a motorized vehicle like the Class III ebikes.
Although ebikes are heavy (75 lbs each) Babe has mastered hers. They now make a step through model of Rad Rover and I've offered to get Babe one of those but she says she's fine with it. I believe that Andy and Sherry have the step through models.