Completely unusable last time I tried it. You got hit with rate limits after the first few minutes of using it. It's fast but cannot sustain its claimed speed before it immediately hits its rate limit. What good is it if you can't finish a task? It's like having a sports car that can only drive 180 mph for 5 seconds every minute and then has to cool down for an hour.

Borderline fraudulent to advertise to developers when it's completely impractical to use. Their only support is their company Slack channel.