Stable income: Somewhat stable

The Niche Audio Ad Creator business opportunity can offer a moderately stable income for most people who try it. Based on online information and my experience, some individuals earn consistently, while others may experience fluctuations. If your best friend quit their job for this, I would say it's a moderate risk. I'd rate it a 3 out of 5 because while there is a decent baseline income, there can be periods of unreliability.