ahem, I drive a Vito every day,It gets a lot of hard use on farm tracks delivering goods all over Cumbria,after 97.0000 miles we have had no major faults.the newer 639 versions are galvanised so no rust issues like the older ones.
The only wear item has been front pads lasting about 20.000 miles,considering the vans usually heavily loaded, and is travelling on all the lakeland passes I think its pretty good.
The drvers window switch has become intermittent, hopefully its not an expensive fix,I have a long vito sport for personnal use and can get 6 bikes and five passengers in it with all luggage,splitting fuel costs is one of the great things about vans,and its more sociable when your bouncing after a great day on the bike.. 😉