I bought a diesel Volvo a couple of years ago (still have it now, but selling to pay for the conversion). I really didn't want to get a diesel at the time due to fears over DPFs and short journeys, but there were no larger used petrol cars around thanks to fleet preferences. About 3 weeks after buying it my work patterns changed and my dropped by about 2/3 . Most of my runs were short, with the longest being whatever I did with the family at weekends.
Despite my fears I have had no problems at all. The DPF light has come on twice and I've simply used that as an excuse to go for a drive. A short motorway run once a fortnight seems to be enough to keep it happy. Volvo is now going and the t6 is going to face similar issues. If it causes a problem I'll probably hack the DPF out, but I'm not hugely worried.