One problem so far: the tubular guard over the derailleur was bent inward in shipment. It is preventing the derailleur from moving. I've emailed espin to ask if I should attempt to straighten it, or if they prefer to send me a new guard.
A short ride convinced me the sport has plenty of power.
The front wheel, front fender, headlight, handlebars, and pedals need installation - all things a bike owner should be able to handle. Espin includes a sweet little multitool, but I'd use more substantial tools for assembly if available.