Hi Justin
I have had the Relay, 52 plate, a little over 2 years and it has about 115,000 miles on it.
No real problems, things go in time. January just gone at its OT it was a wheel bearing that was really noisy that failed. It took the garage a lot of effort to get it replaced cause it had started to weld itself (it was bad).
Excellent starter, havnt got a clue how many mpg I get, just keep feeding it.
I would def have another, or the Pub Boxer as they are the same.
Fiat Ducato is same van but a different engine. Either their own or a Ford so I have heard.