Usually I only look at a guide if I'm absolutely stuck and can't figure out what the eff I'm supposed to do.
Was playing Bard's Tale (the original) recently and Kylearan's Tower is a case in point. I got past the dark rooms, got past the riddle, got past the huge dark area where you have to find the magic mouth that asks you to name a street... then I got stuck in the area with the doors, spinners, and teleporters.