I'm sure that it's a lovely bike. It looks more or less the same and the same spec as the latest Oxygen MTB, but with a Bofeili central motor instead of a bafang rear hub motor; however, I can't really see a reason to buy one. Firstly, at $1700 (£1300), it'll end up at over £1600 by the time everything is paid for and I don't believe that that includes the shipping cost, which would probably be over £100. You can get a nice bike with a Yamaha motor with full guarantee and dealer support for less than that:
http://www.rutlandcycling.com/318576/products/2016-giant-dirt-e-plus-2-electric-mountain-bike-yellow-blue.aspx?origin=pla&kwd=¤cy=GBP&gclid=Cj0KEQjwmri_BRCZpaHkuIH75_IBEiQAIG0rIbAV3zrhcHvhtX7DjWu8cE-cWBs4ECq1hqzN3BVvNy4aAod_8P8HAQ
Secondly, I've never seen any bikes in the UK with the Bofeili motor, so if anything happens to it you'd be a little stuck. No other motor can be used in the frame and you can't chuck the motor and put a hub motor in because there wouldn't be a bottom bracket to install the pedals.
Thirdly, the bike is made in China. I would say that the FLX guys have been to the Shanghai bike show, seen it there, and are trying to get enough money together to buy a container of them. When they have enough, they get the container and redistribute the bikes. It doesn't make sense to buy a bike that's made in China, shipped to USA and then shipped to UK because you get double shipping costs. You can normally buy single electric bikes directly from the manufacturers in China, which only have a single shipping cost and no distributer mark up. A bike like that would cost about $800 plus shipping, if you bought it directly. You can find such bikes on the various Chinese trade websites. Here's an example of a full suspension one with a Bafang Max-drive motor, for which spares would be readily available and it's more powerful. It's $1200 vs the equivalent FLX at $2300:
https://www.alibaba.com/product-detail/27-5-Full-Suspension-Bafang-Max_60496687656.html?spm=a2700.7724838.0.0.wESAoD
Here's a full suspension bike with a Bofeili motor. If you search far enough, you'll find that exact FLX bike under the Chinese brand name:
https://wholesaler.alibaba.com/product-detail/Manufacturer-direct-selling-26-inch-250W_60288455325.html?spm=a2700.7724838.0.0.VDzYaT