I think the most important part is that WiseCash helps my users increase their rates (earn more / work less, because they know exactly their "time-wealth", how much time their business can remain alive given their expenses/income), have a better family life, or work on a product in a sustainable fashion.

So it brings important changes to their lives in a very concrete way (and I must improve the home page to do a better job at telling this). In that way, I believe the value can be demonstrated and measured.

I avoided freemium, focused on B2B, too, and it definitely helped.

As well, taking Amy Hoy's course was a great idea (even if I didn't apply all her advices properly, otherwise this blog post wouldn't be up online).