I like mine because it looks more like a regular bike than many others, and I can take it to some fun places without installing a bike rack. I mostly ride on dirt roads, but like to travel to different trails. I went on a 14 mile trail last week that was all grass. Quite the work out. There's no coasting on grass.
Someone mentioned a bike this heavy wouldn't be fun without a motor, and yeah, sometimes, but I went through a stretch of mud yesterday, and was darn happy I had fat tires and a motor.
For those who call it cheating: We are all different, have different abilities, and like different things. It doesn't mean you're not a driver because your car is different than mine. So if I am pedaling a 2 wheeled thingy, then I am a bicyclist.