i dont mind them at all, i try and complete games by myself, but one thing that always bugs me is that in some games, you have to do a certain thing or talk to or start a certain event for something awesome to happen later, such as a great weapon or item, so ill tend to look at boards or walkthroughs real quick just in case before i start a game (example FFXII, with that golden spear thing where you can't touch certain treasures).
also with collecting certain items or certain puzzles will just make no sense sometimes depending on how you think..(left brain or right brain person or just depending on how you evaluate a situation)
so they are a must to have on hand, but i tend to want to beat the game by myself first