If it's not helpful don't use it.

Personally, this appears to be extremely helpful for me, because instead of checking several different spots every day, I can get a coherent summary in one spot, tailored to me and my family. I'm literally checking the same things every day, down to USPS Informed Delivery. This seems to simplify what's already complicated, at least for my use cases.

Is this niche? I don't know and I don't care. It looks useful to me. And the author, obviously, because they wrote it. That's enough.

I can't count the number of useful scripts and apps I've written that nobody else has used, yet I rely on them daily or nearly every day.