We have a Whirlpool electric range from about 1990, and I love the self cleaning feature. I han truly say I will never willingly own a manual clean oven again. Ours allows you to set the cleaning time for any length you wish, I usually set it for about 2 hours, but just let it heat until the "oven heating" light goes out and then either about another hour or until the wisps of smoke stop coming from around the door. Yes, it uses a bit of electricity, and yes, it stinks up the house for a bit, but not having to spray that nasty oven cleaner, and then breathe in (and choke on) the toxic fumes is worth it for me. I love opening the door to just a tiny bit of ash, wiping it with a damp cloth, and looking at a perfectly clean oven.