Mine is a daily, about to hit 80k miles. No massive issues (warping discs and headlight washers are the only things I can think of). I think its a great daily driver. The sound isnt great admittedly but with sport mode its decent enough. Service costs at main dealer are ridiculous for what they are (VM Motori diesel engine). Just paid £890 for a service (air, oil, diesel filters, brake fluid and oil change).
Also note spare parts are jokingly expensive, £1032 for a pair of headlight washers for example!
Check if its a Euro V or Euro VI. The Euro VI should be exempt from most anti diesel hysteria.