Reviewers mostly praise HeyGen for making avatar videos fast and easy to create, with realistic avatars, strong multilingual dubbing and translation, and clear value for marketing, course production, social content, and even chatbot or accessibility use cases. Some say the photo-to-avatar path, voices, templates, or emotion controls still need work, and results can vary by language or setup. The sharpest criticism is not about core appeal but reliability: several users report slow processing, moderation blocks, confusing plan limits or credit charges, and uneven customer support.