Agreed. A professional PDR makes dents and dings invisible however we have to keep in mind that not all types of dents can be removed 100% and some imperfections will remain in those cases.
Sabir Ali denter in isb/pindi is the only one so far that does professional PDR with the right tools. There might be others but they remain unknown.
As for OP and my experience I dont have pics. It was a deep scratch on the door, I expected it to be removed 100% but it was 80% which was expected because for PDR you need special lights to visualize imperfections and those guys did not have them. Still the job was alot alot better than any hathora denter so I opted for them.