Reviewers focus on one thing above all: speed. Users say Groq Chat replies almost instantly, making quick code fixes, rewrites, and short back-and-forth work feel much smoother than ChatGPT or Claude, even if those tools still do better on long, involved reasoning. They also like being able to switch between open models without setup. The main complaints are practical: limited chat history, shorter context, a shifting model list with little guidance, and no equally accessible API for building. Founder comments mostly reinforce the same themes of speed, reliability, and useful free-tier access.