Hello I know just getting into e bike. Looking into either radexpand 5 or lectric xp2.0 or radrunner utility bikeor the wagon(or any in these general style). any experience or testimony would be great . Main concern is price and if it worth paying an extra like $600 for the rad power bike in general. The payment plan is either $50ish a month or $100 month. Not much difference but is it worth it?