CrewAI is the 'Rails' of agent frameworks—opinionated, productive, and accessible. It excels for developers who want to spin up a team of agents (Researcher, Writer, Editor) without getting bogged down in graph theory or complex state machines. However, if you need granular control over every state transition or are building for a non-Python stack, look elsewhere. Use it for rapid assembly of intelligent workflows; avoid it if you need bare-metal control over the cognitive architecture.