My Optibike is awesome. With the external touring battery I travel 40-60 miles a day and make it to Mt. Hood as I live in Damascus Oregon. It is a 20 mile ride into Portland for me.
I climb a massive hill and breeze up there quite swiftly. I have so much fun and the Optibike is a blast. I have an attached trailer that I pick up a 50 pound bag of dog food and ride 15 miles each way to get it back home.