In previous EFU chapters, I remember seeing a lot of quest giver npcs give more or less rewards according to diplomacy checks. In the current one, as far as I remember, there's only one. Let's give options to use persuade, intitimidate, and perhaps even bluff to get better rewards (or perhaps even less on auto-fails)!
While I think most of us do like this sort of thing, they can make the implementation of quests somewhat more annoying and that is probably why for the most part they are not utilized outside of our lowbie circuit. That being said, we are receptive to doing this sort of thing more where we can spare the time.
The downside of them is they mean one person passes a check and then shares it out to everyone. Meaning the check's not individually valuable.
The check in the furniture quest where everyone gets to make some rolls for loot is my star example. Because then a high score is good for you, personally.