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Basic usage often requires sudo privileges for traffic capture, adding complexity and security concerns, as seen in the 'sudo' commands in the getting started examples.

The open-source version is primarily HTTP-focused, with binary protocol support like Thrift or ProtocolBuffers only available in the paid PRO version, limiting its utility for some modern stacks.

GoReplay lacks a graphical interface, relying solely on CLI commands, which can be less accessible for teams preferring visual tools or automated workflows.

Documentation is spread across a wiki and multiple pages, which might be less organized and harder to navigate compared to a unified documentation site, as indicated by the links to various resources.