I have had this thing for two years. it has worked great. The battery lasts and it still has great range. The tires are airless after I replaced them. There is a problem with it accelerating, and it sometimes will stop accelerating or won't. im pretty sure it as an easy fix replacing the throttle, but I just don't have the time. I am asking 150 obo, and will accept trades. Message if yoy have any offers.