Sorry to revive an old thread but I have two EB5 Pro+ from Amazon for $499 shipped (got them in 3 days).
My gf and I wanted something small enough to fit in the trunk and can be powered manually or electric; these bikes fit the bill perfectly.
We have only gone about 100 or so miles total but we have been loving them so far, battery lasts quite a while (I ride, maybe 50% pedaling).
My only gripe is the lack of suspension and it's only a single speed but, keeps it simple and less things to break.
They are not serious bikes, we are just casual riders that enjoy scenery.