We likely see an ROI after three or four years. 

After 20 years of using the solution, our company has definitely seen an ROI. I don't have exact details, however.

We have definitely seen a return on investment.

The ROI for this solution is hard to quantify.

It's better than using PowerPoint or something else to draw the diagrams. 

I never calculated the ROI, but Visio provides me with far better than what I am paying.

Good. 

I haven't actually calculated an ROI, but I would approximate that I save at least two hours' time of cumulative manual effort for each graphic built with Visio.

Best way to express ROI for Visio would be the quick and consistent documentation that it helps create, provided that the product is used consistently for diagramming.

It's just a supporting tool. I can't speak to any direct ROI.

I'm not involved in the financial decisions, so I can't calculate the actual value in return on investment. However, it saves time in training.