You can only query factual errors on your report. Any subjective stuff is the prerogative of the RO's isn't it?
If you can't get satisfaction that way, then follow whichever QR's apply to you to move your complaint up-stream. I heartily recommend against Southside's advice if you want to be taken seriously. If it comes to it, the complaint can go all the way to HM herself if you wish, but follow the reg's first.