Overview:
If you're looking for ways to improve the integrity of your decision-making formulas other than relying on Excel's IF function, you'll find this presentation quite helpful.
Excel expert David Ringstrom, CPA, briefly discusses the IF function and then, in detail, takes you beyond the basics. He explains what can go awry with the IF function, and he then shares alternatives to using the IF function, including IFNA, MINIFS, SUMPRODUCT, and others.
David's assertion is that if you're nesting more than a couple of IF functions, there are probably more refined and resilient approaches you can take.