Auth0 offers a convenient solution for integrating authentication into applications, as demonstrated by its use in the initial stages of the Growth Book MVP. However, the customization options for the login page appear limited, with available templates being outdated and lacking features like password reset and Google login, suggesting minimal support from Auth0 for this aspect. To create a more cohesive user experience, the author redesigned the login interface to align with their onboarding process, opting for a two-column, full-height layout with integrated forms, updated Bootstrap CSS, and a custom Google font. While the shared code provides a functional foundation, it could benefit from improvements in switching between login, register, and forgot password functions, as well as adopting more modern ES6 coding practices.