What I said for the Sparta Ion goes for this too Keith. The BionX is a direct drive motor which isn't suited to hill climbing in the wat that other designs are. This one is the illegal US motor so is a bit better, the UK version being 250 watts and rather weak, but any direct drive is outclassed by the same power geared hub motor, the only disadvantage with the latter being a bit more noise.
I think it best to stick to the mainstream bikes that are available, rather than digging out the stuff on the internet. These often have no support, and are more often than not just junk or not suited to the UK market. I have a very low opinion in general of most US cycle design, and even lower opinion of their e-bike designs. They are too often gimmick ridden just for the sake of being different. Europe is the home of good cycle design, and therefore knowledge of what makes good bikes to import.
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