Well, don't know what to say. This bike is really something, rigid and strong. It took less than 20 minutes to take it out from carton box and assemble it. It Was packed well and there was no damage at all and no any scratch on the bike. The seller was very, very professional, providing additional tracking number, and sending messages of shipment status. I will definitely make another deal with them.
The only regret is that the battery is a bit small, I think it will be better if 17AH