What would you like to see in a transparent cross-chain swap tool?

Hi everyone,
We're building BTCNator Bridge Swap with one core principle: full transparency. Every swap script is visible before execution.
We'd love your feedback:
1. Which chains would you like to see supported first?
2. What features make you trust a swap tool?
3. Would you prefer a simple UI or more technical details?
Your input will shape the final version. Thanks!"