I think your review is still good tho since it covers many general points about owning a cargo bike and a lot of genuine good experiences about how grate a cargo bike is to use everyday. That’s really nice to read and will hold true for any bike. Just make sure you service the breaks well or change them entirely some time soon so you don’t have an accident when you really need them. Also it might be a good idea to inspect the frame and drill a little draining hole where water could be collecting inside the frame. I think that was one of the major causes for the rust. Water got in somehow and could not get out of the frame. Then possibly follow up with some rust protection inside the frame everywhere you can get to it. That should help tremendously imo.