I rode a pre-production FLX Trail model. Seemed like a decent bike for the price. Since I rode it, though, some of the specs/components were changed to lower-spec versions. Specifically, the front suspension fork on the Trail was originally supposed to be a nice Epixon air fork but was later changed to a lower-end SR Suntour coil fork with hydraulic lockout.
Yeah, looks like the same bike from the same manufacturer. I don't fault the FLX team for ordering an existing off-the-shelf design. They did do some pre-production testing and design iteration in order to get the components right, so at least they did their due-diligence.
Although the FLX products seem pretty decent, I'm a bigger fan of what has been coming out of Juiced Riders and Rad Power of late, especially considering that replacement parts for the FLX motor (Bofeili) are hard to come by in North America because only FLX and Optibike sell Bofeili-equipped ebikes (AFAIK).