Your luck has not been so good, it seems. I just bought my MXUS-kit from Greencycles, and have not experienced a slightest problem with it since, and i hope it stays that way. MXUS DD motors are equipped with Honeywell sensors as a standard. Of course i"m a tarmac guy with slicks, i don"t ride off-road and i am not gonna ride in the rain, if i can avoid it. That rusting tendency worries me a bit still. Greencycles customer service was really good. Of course it comes with that bulky, submarine-style antiwater controller, but i build a box from 4mm ply around it, so it"s quite stealthy. Only quality thing since this day were the axel nuts, i bought harder nuts from that nut&bolt shop located in Karjalankatu. Original axel nuts were too soft metal, axel itself is hard. Good luck! E-bike is really great thing to ride, expecially for a middle-aged guy like me with worn-out knee. We are like first pioneers in Finland with these DD-hub bikes, i wonder if i will see a another e-biker during the summer, it is possible.Two would be a surprise. Last year i saw none, though then i did not look that hard. I mean DD-hub bikes, those 250W-geared ones i might see a few.