I have a traffic sport as my work van.
Its probably at its max weight limit and has been since new.
Not had many problems with it.
Abs rear wiring loom done under warrant
Gear selector cables done under warrant
Gear box diff was noisey replaced full gearbox 1000 miles ago van had 99k on it and Renault paid for everything except the clutch
Oh and this is my third one now and its great