How much help the player?

In these days i'm playing with Risen and i'm thinking: how much help player during his play?
After a error, a npc attack me and i killed it: not so surprising in this kind of game.
When i see on his objects i've found a "Don Esteban's mother pendant" (Don Esteban is an important npc): i went to Don Esteban and a new dialog option is showed to me, with a +150xp.

Good thing, rewarding and surprising, because there wasn't no quest in quest log and no mention to this lost pendant.

How much to you feel with these surprising, little thing in games?