I've been driving Vito's since the 90's, I have never had any other van. I have has issues with them all but nothing major and no recurring issues. Mercedes Benz UK, France, Italy and Spain have all given me excellent after sales service and have always given me a loan vehicle if there have been issues. All countries in Europe have given me 15% off the purchase price but I think they inflate them by 10% anyway.
From my experience I would say good choice