I evaluated this for a small business but came to the conclusion that self hosting this security critical software would cost more in work hours for initial setup and maintenance than just paying the cloud fees for a few years. Genuine question, in what scenario is the self hosting setup and maintenance worth it?
Personal use. Using this avoids the potential of a bitwarden hack (see: LastPass) leaking out all your passwords. You are much less likely a target than a central server like bitwarden.