Effy AI is praised for its user-friendly platform that simplifies performance reviews with AI-generated reports and ready-to-use templates. Users appreciate its integration with Slack and Teams, which enhances employee participation and communication. The platform is noted for saving time and fostering meaningful conversations, making it suitable for both small companies and larger teams. Despite one negative review, the overall feedback highlights Effy AI's effectiveness in streamlining the review process and boosting employee engagement.