--- title: "Ten intangible qualities of a successful product" description: "Kevin Harrington's checklist of ten questions to ask before launching a product or service." canonical: https://tomsharman.com/bookshelf/key-person-of-influence/ten-intangible-qualities-of-a-successful-product/ updated: 2026-11-03 --- # Ten intangible qualities of a successful product > Kevin Harrington's checklist of ten questions to ask before launching a product or service. Kevin Harrington and Daniel Priestley's framework, from Key Person of Influence, pp. 42 to 128. Framework 6 of 11 from [Key Person of Influence](https://tomsharman.com/bookshelf/key-person-of-influence/index.md) by Kevin Harrington and Daniel Priestley. Category: Offers and pricing. ## The steps 1. **Unique.** Is it unique in its marketplace? 2. **Big enough market.** Are there enough people who want it and can afford it? 3. **Solves a problem.** Does it really solve a problem? 4. **Powerful offer.** Is there a powerful offer with a competitive price? 5. **Easy to explain.** Can you explain how it works simply? 6. **Transformation or demo.** Is there a visible before and after? 7. **Multifunctional.** Does it do more than a competitor's copy could? 8. **Credible testimonials.** Are there real customer and expert testimonials? 9. **Independently proven.** Are there third party results or studies? 10. **Answers the buyer's questions.** Can you answer every sceptical question the buyer might ask? ## Where it comes from From chapter: 2. The Key Person of Influence Method, pp. 42–128 ## The animation 24 seconds, 4:5, no sound. - MP4: https://tomsharman-downloads-006143767029.s3.eu-north-1.amazonaws.com/downloads/bookshelf/key-person-of-influence/ten-intangible-qualities-of-a-successful-product.mp4 - MP4, dark: https://tomsharman-downloads-006143767029.s3.eu-north-1.amazonaws.com/downloads/bookshelf/key-person-of-influence/ten-intangible-qualities-of-a-successful-product-dark.mp4 - Still: https://tomsharman-downloads-006143767029.s3.eu-north-1.amazonaws.com/downloads/bookshelf/key-person-of-influence/ten-intangible-qualities-of-a-successful-product.png - Still, dark: https://tomsharman-downloads-006143767029.s3.eu-north-1.amazonaws.com/downloads/bookshelf/key-person-of-influence/ten-intangible-qualities-of-a-successful-product-dark.png