I guess it depends on what you need to carry really, and as for fanny magnet... well I dont really think a vauxhall of any sort is gonna make it mate..( oooh hes got a VAUXHALL!!!.....never gonna happen!!)
Mind you if you have a Vivaro at the moment I pity you, I have one too and they are ....lets say not the best build quality. Steer well clear if its got over 100 thou on the clock as the fuel system will start playing up one way or another soon, check out the forums is my advice and dont wait untill you really need one as I did.( learn from the mistakes of others said the wise man)
I think the VW transporters are good vans but dont know that much about their issues, they hold their price well witch kind of tells a tale.