When playing Campaigns, I always used cheats :D Except maybe Restoration of Erathia, which I somehow completed without them. And Heroes Chronicles — there you can choose the difficulty level. I simply don't have the nerves to replay an L size map ten times when it has a dozen enemy towns :mad: When the AI gets luck and morale bonuses every single turn, while yours for some reason stays tucked away. When it knows Chain Lightning and you got Water Walking on a map without a single body of water. I play to relax, not to go grey from stress prematurely :o
That's when cheats or cracks come into play.