Just be sure not to rely on one [walkthrough] utterly, as otherwise you’ll beat the game without any of those "Eureka!" moments of satisfaction.
Funny, I don't think people had "Eureka" moments in the E.T. game (yeah, that one) when they managed to get out of the pits.
And "Eureka" moments in adventure games in the olden days usually went like: "combine this broken metal rod with that plastic bottle in order to create a thingamajig that will combine with that torn piece of clothing which you then give to the king who will give you a cart full of dirt to take to the wizard".
Not in the least logical and if you didn't buy the official guide (usually about the price of the boxed game release!), you needed to hope for your games magazine would print tips for the game you're stuck with and that they would include that specific location and not the ones you guessed.
Eureka? Fat chance. More like sheer frustration.