[jskrablin]

You should be able to get years of support for established brands. They are all using similar/identical components (Shimano, Yamaha, Bafang mid drive motors, similar battery packs, etc). There's also aftermarket support/custmizations available for them.

Going with a small/exotic brand will always carry a risk of brand disappearing, no aftermarket options, hard to get spare parts, etc... And e-bike business is especially competitive these days so I wouldn't bet on some random hipster brand having any chance to survive in the battle against established brands.

[benoliver999]

Yeah I look at e.g. Bosch and it looks like a standardised size and fit. Bit ugly but removable and replaceable.