Demon Slayer is not that good

I agree. I enjoyed the first season, but started getting less interested the more it went on. It really came out at the right time, and they lucked out when it came to who was available to make the Anime. Read that it was a "Who's who" of quality anime creative types who were all by coincidence, suddenly available all at the same time.

Production values are off the charts though, and and the animation / sound / music / etc. are all great.

That said, having marathoned Jojo recently, I can't watch without waiting for Jonathan or Joseph to show up. Demon Slayer would be more interesting for me if a "Hamon... Oveerdrive!" or "Oraoraoraora ORAA!" showed up.