Yes, it requires operational overhead, as does any self-hosted solution.
This is useful, for example, for organizations seeking to control data flow (i.e. making this code only available on a private network, or to and from a CI/CD pipeline or deployment platform), or just anyone seeking to cease doing business with SaaS providers (my main motivation, for example)--cases where the operational overhead is not a compelling drawback.
Perfect! Concerns around privacy are very valid nowadays since all SaaS providers snoop on user-data in the name of rules & regulations, compliance via some way or the other.
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We strive for transparency and don't collect excess data.