Hey, I have an Ancheer folding bike too. Love it, actually. Used it for commuting on the SMART train to San Rafael. For $799 delivered, and tuned up on-site by a mobile tech, it's pretty hard to beat. It lasted me two years of consistent riding (other than the weird tires, which I replaced with Kevlar-lined tires). Then the battery died. When I replaced it I could never get back the same power- but only on the high end. After that I replaced the controller, then the rear wheel (motor) and still can't get the same power in pedal-assist in the high range. Works great low range but really lacks power in the top gears. And I rarely ride in the lower range. I have a new cadence sensor I'll replace this weekend and hope for improvement.
My suggestions to a newbie:
1) Wear a helmet- you never know when you're REALLY going to need it
2) Situational Awareness: always know what's going on around you
3) Drivers don't understand e-bikes; you're often approaching them much faster than a regular bike and they'll pull right out in front of you
4) Use LOTS of lights at night - huge mistake many riders fail
5) Respect traffic laws (mostly) - extraordinary behavior/events cause confusion and collisions - there are many inexperienced drivers out there
6) Enjoy the ride! Especially now that gasoline (here) is approaching $6/gal