Moi?
DPF!! (Isn't a PDF a computer thing?)
Now done nearly 62k miles and never, ever had a problem. Suspect it regenerates about each month (1500miles), but nothing I worry about. Certainly much better than a stupid "Adblue" system!!
A lot depends on the journeys you do. Lots of short hops or stuck in trafficwhen it can never get properly hot might cause problems, but there are owners with diesels in London I know who don't have any problems.
You cannot buy a Yeti without the DPF because it would be illegal for Skoda to sell one. They are now required on ALL diesel vehicles, in some manner.
And agreed, the 140 is great. Performance is more than adequate, even with a 1200kg caravan on the back. Fuel consumption is excellent and I've averaged very top 40's during all the time I've hadDewi.