One thing that IS indisputable, is that TTWT is Scotty/Jimmy Doohan's Finest Hour on TOS - he even gets to deliver the final punchline!
"Lad...don't you think you should.....rephrase that?"
Scotty has always been my favorite TOS character, and he really steals the show in this episode.
"They called the Enterprise a garbage scow! ... it was a matter of pride!"