Reviewers see RunwayML as a promising but uneven text-to-video tool. Positive feedback says it can produce impressive results, works well for abstract b-roll, and is useful for concepting or low-budget indie work, with some users appreciating its broad set of AI tools and clear expectation-setting. But the strongest criticism is about cost versus reliability: several reviewers say prompt adherence is weak, outputs often disappoint, generations can be slow, and moderation or account enforcement feels opaque and frustrating.