Reviewers see RunwayML as promising and often impressive for text-to-video, especially for abstract b-roll, concepting, and low-budget creative work. They also like its broad, one-stop mix of AI tools and relatively clear expectation-setting. But the praise is tempered by sharp complaints: some users say prompt adherence is weak, outputs can disappoint even with image guidance, and the service feels too expensive for the amount of trial and error required. One reviewer also reports slow generation, strict moderation, and poor account support.