I think that the idea itself is fine, though the implementation seems really random. You also get a choice somewhere in the underdark, though I can't remember the specific quest even though I just played it yesterday. But neither that quest nor the inn one are all that important. It's strange that they're the quests that give you a choice. You don't get one from the grove druids or auntie Ethel's questline. Overall I do like the idea of picking rewards for certain quests, but I think it could be integreated into the story far better.