My wife had that model as a company car. Most journeys were motorway. Never had an issue with it but know someone who did (dpf) and cured it with a hard drive every now and then. The wife does tend to rag it a bit though when driving and change gear once revs are quite high (for that car). My sister has had a string of golfs R32, GTi and currently a 170bhp GTD, which is her first diesel golf, it has developed a dpf fault which she claims is worse through villages/towns.
Over all the blue motion are good cars IME for what they do. They could be described as quite dull but it’s not the kind of car you buy to excite you as such. After 60k it still felt well made and the interior looked good as the quality of plastics is good.