No, not really. You can tell by his "95% confidence" quip where he tries to make his opinion sound scientific.

I hope this works, but there's more reason to be skeptical than positive. There have been an awful lot of replication failures.

Wait until it's reproduced somewhere outside of a simulation or China. People are working on it, because if one in a hundred of these seemingly bogus claims turns out to be true, the 99 wasted efforts will still have been worth it.

Yep, imo it seems like this is just the first step of room temperature superconductors, there is LOTS of room for improvement, even if LK-99 itself isn't useful for anything real-world I think it at the very least is a jumping-off point for innovation on the concept, and finding more compounds that have similar properties