Opencode gives $80 worth of Deepseek for $10, Scam?

I'm trying to decide between subscribing to OpenCode Go for $10/month, which apparently includes $80 worth of API usage, or just using the DeepSeek API directly. Which option offers better value for money, especially for coding tasks? I'm interested in comparing the actual costs, usage limits, model performance, and any restrictions that come with OpenCode Go. Is the $80 usage allowance really as good as it sounds, or would using DeepSeek's API directly be more cost-effective? I'd love to hear from anyone who's tried both and can share their experience.