our family has 6 bromptons we sold all our dahons. bromton brakes are general purpose general fit-all design ok but not great could be better designed but they work did not replace them you'll get used to it its actually better quality than most folding bike brakes out there.
the only thing we replaced when it got worn are the original Brompton tires upgraded with Schwalbe and the seats to Brooks leather not because they look cool or look expensive but they actually offer the most comfort once broken in.