trev,
whilst working for somebody else i've had vw transporters, ford transits, renault kangoos, citreon berlingos, renault masters, merc sprinters and vitos and of course trafics.
of them all i liked the veedubs and the trafics but when i went self employed i had to choose, the vw was just far more expensive for what you got(same plate, similar mileage) so a trafic was duly bought.
i've had a few very minor issues with it(radio mainly) but it was all resolved fairly quickly, renault dealers aren't the best so i use my local independent garage now who are a damn sight cheaper.
i'd defo reccomend you test drive a trafic at least.
i get about 35/40mpg from my trafic