Overall Star Trek V wasn't a bad movie, it has its problems.
One thing that I didn't like was when Kirk, Spock and McCoy were in the turpo lift shaft. They appeared to be on the lowest deck. But it was saying Deck 1. This can't be so since Deck 1 is the highest deck not the lowest. Another thing that bothered me was during the same scene where the three of them accelerate upwards. They climb many decks reaching all the way to the top of the deck. This really could not happen. It would be impossible to get from the lowest deck to the highest deck without going horizontal down on of the turpolift shafts first.