I would say finding the magnet can be a chore in some cases (I remember spending a few in-game days trying to trigger the delivery the last time I played). At least you are lead to the ally where the key is by the ghost.
Personally, some specific niche stuff is (imo) illogical or outright improbable to trigger without a walktrough (Titus as a willing slave for example - it's probably the most convoluted thing in the game; Mother superior is the same; Mom and Gabby story line is also just hard). Some dots are not easy to connect (I remember the sheer amount of time Miko killed me) and some people are just hard to get (Ellie and her mom). But that's fine.
Most of the other stuff is doable without a walktrough, even for me (and I suuuck at such games). And tbh, my main problem with the game is always mana on the apprentice path. It's just hard to find stones especially compared to having the box on the murder path. That said the Murder path is way more complicated story-wise.