Only bad experiences.
Currently I have a parcel which was not delivered because they 'didn't have my full address', which is not true. To make things easier I've changed the delivery address to be one of their pickup places and even though it was scheduled to be delivered today, I got a notification as if I had asked for it to be delivered tomorrow (which I didn't).
In my previous address they managed to deliver a parcel to the WRONG BUILDING. I've seen people delivering to the wrong flat, but missing the building is something only DPD can achieve.