“Demo software changes the rules. Customers purchase your product only after it has proven its usefulness. Usability barriers in demos often cause customers to decide not to purchase—after all, their commitment to your product is minimal at that point. Plus, product reviewers often use demos to evaluate products. They rate your product based on how well the demo performs for them. A poor review can discourage many potential customers from even trying your demo, let alone purchasing your product. In both of these scenarios, your product’s user assistance can affect how successful a user or reviewer is in getting your product to work for them, in the critical window during which they’re making their judgment about your product.” (Mike Hughes ~ UXmatters)