Learn English – “Heck” in formal writing

formality

So I'm trying to make a proper transition to the next sentence and was wondering if I could use "heck" in such formal context.

The AI will recognize people entering the apartment and greet them with their preference in lighting conditions and room temperature. It’ll play their preferred music and record their favorite shows. It’ll even make them their desired blend of coffee. Heck, It’ll even help me reduce costs by monitoring electricity and gas usage. In short, it’ll be amazing.

Best Answer

To heck with heck, let's fix that transition.

The AI will recognize people entering the apartment, greeting them with their prefered lighting and temperature conditions, playing their preferred music, recording their favorite shows, and make their desired blend of coffee. It will even help reduce costs by monitoring electricity and gas usage. In short, it will be amazing.

If only it could drive me to work while I took a nap in the back seat.