Well its now well over a year of riding the greenewheels bike and still going well.
I did have to get the bottom bracket fixed, it had started getting very loose, though this is evidently quite normal “consumable” in any bike getting a lot of use. The bike shop didn’t have a replacement part as the greenewheels parts are wider due to the electric stuff (not quite standard size), but they have managed to repair what is there so it is fine. Next time I’ll sort out sourcing the part, there are enough ebike shops that it should be available somewhere.
Took the bike to Dandenong Bicycle Superstore who did a good job, and sorted a lot of bike maintenance/ tuning type issues that I’ve had a fiddle at but never got quite right, like the spoke tensioning and stuff like that. And my rear brakes, which needed attention. The general service on the bike from these guys well worth it.
Also I suspect the range on a full charge is down to about 33KM from the 44KM range it had when new, this is the expected wear on the battery, but I’m guessing I still have another year of use from the battery before it needs replacement. This matches the stated expected battery life so all OK there, especially as I can still get to work and back on a charge with some range left over.