1. It's good.
2. It's often free.
3. It comes backed with the best warranty in the business.
4. It's honest.
5. It's safe.
6. It's delivered in a nonjudgmental manner.
7. It's friendly.
Seriously: listen to my advice. But first, listen.
Your most valuable adjective should be "coachable." Especially if I am the coach.