Didvidend sustainability is, I believe,  one notch below what a dividend-focused investor should be looking for. If an investor only owns shares of companies which have a business model that makes them virtually certain to raise and continue to raise their dividends, sustainability isn't on the radar. And within this realm, I'm not looking at those that yield 0.5% but rather companies that currently yield between 3% and 7% (my current average yield is 5%) and as mentioned will be boosting their dividends for the forseeable future. This, I've found, is the "sweet spot" for total return when it comes to dividend / dividend-growth investing. For me, anyway.
SFI