This is one of my favourite side quests. It is great since your can fetch it easily with Thurindir and give him that +1 once you complete it. It works great for quests like the Ruins of Belegost with lots of locations with the same name. This is like a larger and permanent version of Secret Paths except more fun and with great art. Overall, this card is very worth it in my books.
Also, it works great to negate those locations that give other locations more .