Yeah I started using Actual about a week ago. Setup SimpleFin in a few seconds within a couple of minutes actual was auto populated. I ran into a syncing snag and messaged Simple Fin support. They worked with my credit union and I was all good in a couple of hours. Been running smoothly ever since. I really like it. And I don’t have the guilt of not budgeting anymore. Plus, ynab tutorials and advice are basically Actual tutorials.
Depending on the size of your mom and pop, I think it would do much of it. At least keep things organized to do a demo of QuickBooks or give to an accountant.