Sounds like you shoulda stuck with your Sport order...I got a Flow for my wife. It came quickly in matt black, which apparently isn't the popular color (although impressive in the flesh).. But when I kept getting these "shipment delayed" messages from espin regarding my Sport order, and couldn't get ANY response to several voice messages left on their phone, I began to worry that if there are issues, I may find myself outside the credit card challenge time frame. I decided to pull the plug, and asked (via email) and received a full refund.
After much additional research, I zeroed in on an NCM "Moscow plus" bike. Slightly better overall specs, but $150 more in cost. The plus? The bike arrived in Austin from the West Coast just 5 working days after my order. On assembly and startup, there was an issue with the battery. Late in the afternoon on the same day of arrival, I called the distributor, Leon Cycle, and within an hour a replacement battery was on its way. Shipped Monday, and will arrive next Monday (with Christmas holidays in between). NCM is an international company with presence throughout Europe and Australia, as well as the U.S. It was well worth the slightly higher price to know that replacement parts and warranty support will be immediately available, when I need it. Without the battery, I've only been able to ride in unassisted mode, but I find the bike to be well made, sturdy, and comfortable. Will update on performance once my replacement battery arrives.