I only play adventure mode now, and find it a lot more fun... but bug 5102 has really put a damper on things, by making a large percentage of quests unsolvable by a mortal character.
It also occurs to me that there's an inconsistency for the "Quest Compass". For monsters in lairs, the quest compass always points to the entrance of the lair, while for sewers, the quest compass points to the ground directly overhead the creature, making them nearly impossible to find underground, as underground portions are not necessarily connected, and finding sewer entrances can be dastardly difficult if not outright impossible. Would that be something to report on mantis, or suggest in the suggestion forum?
There are a lot of problems with adventure mode right now.
*Your companions are nothing more than meatshields. They don't have any personality,they are very stupid (they can't even get their weapons back if they drop them) and are generally very incompetent in combat (even legendary ones).
*Lots of bugs like the one you cited
*Only human civilizations are slightly developed (there are no dwarven, elven or goblin cities to visit)
*The world doesn't look alive, it is in fact "frozen" and everything happens only as a reaction to your direct actions. Only ambushes are relatively dynamic - imagine how much funnier it would be if you was in a town in the moment of a megabeast attack)
*Lack of interesting quests - all of them resumes to killing something. Vampires and werewolves could be as well any other critter in the raws.
*Lack of rewards - you get nothing from quests other than a reputation that is used for nothing more than to allow you to get quests to kill more difficult beasts, and you can spend the loot you get in nothing besides food, as you get better armors in places other than the shops and you can't equip your companions.
Despise all these issues, it is fun for a while, and it is getting better and better, but it will take time to be as developed (and fun) as fortress mode is.