Everyone who bought an ebike for what it is will be very satisfied with actual performance. But it seems like some have bought the dream of having a 24 kilos motocross and this will be frustrating. Besides ebikes should be compared to bikes and not to any kind of fuel powered vehicles, that sounds nonsense. If you consider these bikes with a cordless driller motor should take you to the top of a mountain with the comfort and speed of a truck and then perform on the trails like a honda cf250 you will be very frustrated, but, consider: thousands of ebikes are being sold and ridden while a few ones come here to complain.