I guess it's a small thing that probably doesn't matter much, but when you reach level 6 as a result of finishing Simon's Delivery Quest it actually says you failed to complete the quest by level 6. It may be like this with other quests...haven't tried it.

Jeril Dolansten says 'Alright, then. There you go. Off with you, then, and waste no more of my time.'
Jeril Dolansten sits back down at his desk, muttering to himself.
You receive 800 experience points!
You raise a level!! Your gain is: 9/86 hp, 21/219 m, 6/210 mv 3/6 prac.
You have learned 3% of your meditation ability.
You failed to complete the quest 'Academy: Simon's Delivery Quest' by level 6.

You didn't actually finish the quest. You finished the first of a handful of parts of the quest, so this is accurate.