Honest Feedback Wanted – Are AI Game Review Tools Useful?

Hey folks, I've been exploring tools that give personalized feedback on your chess games—not just raw engine lines but something more like coaching. I recently built a site as a side project that tries to do this. I’m not here to sell anything, just really want feedback on whether tools like this are actually helpful.

If you're curious and don’t mind giving it a look, here’s the site:

https://boardmastermentor.com/

Would love to hear what you think:

What worked?
What was confusing or unhelpful?
What would you want it to do better?
If this kind of tool doesn't appeal to you, I’d also love to understand why. Thanks!

its show Bad Request (400)

why need this if i use chesscompass like site ? which have all feature in it good move bad move. score best move and chess board also