Lago addresses the complexity of usage-based pricing models by introducing invoice previews, which enhance transparency for both companies and customers. These previews allow prospective customers to see detailed costs, improving purchasing decisions and reducing the likelihood of unexpected charges. For companies, invoice previews provide a clear view of potential revenue and equip them to better assist customers with billing inquiries. Customers can explore the financial implications of changes like downgrades or upgrades, including any applicable taxes and credits, thus fostering a more informed and satisfying experience.