I am riding a Tern GSD S00 and have put about 100miles/mo on the bike in the last 18mo for errands and commutes to my 2 kids school.

I love the bike but the maintenance is quite a pain. In particular replacing brake pads is annoying due to all of the accessories. Also, the lock failed and a caliper exploded requiring a warranty replacement.

Cargo ebikes are awesome but it seems the hardware needs to be heavier duty to make maintenance less fussy.