Be sure to test ride examples of both cuz there is a difference. Then you can decide if that difference is worth it or not.
While this is a R1Up thread, the big-3 make some very nice bikes that can be used as a benchmark if nothing else. And they're relatively easy to find and try out.
Be sure to ride a similar hub-drive ebike if you can't put your hands on the exact model - at least you would have a better idea of what to expect.
Ergos can be adjusted quite a bit on any bike, unless your size is just way out of range or you can't stand over the frame. From seats and posts to stems, bars, etc.