What's the deal with LegiScan?

What do people think of LegiScan (https://legiscan.com/) ? In particular I’m wondering about the following:
1. How good do you think it is at identifying “important” issues that are up for vote?
2. Do you know anything about its ownership or the people who run it?
3. Do you know much about its user bae?
4. Do you have any opinion about any bias it might have or things it might miss? (I’m not only thinking about political bias, I’m also thinking about “algorithm”-type things, like how it determine what’s popular or what to show me.)
5. Do you know of any similar services?
Background: I live in the US. For a while, I have been looking for good ways to identify state and local government votes (bills, appointments, etc) that are in some way “important” or “contentious.” I try to talk to people in my area, read local news, follow community groups, etc., but I want something more systematic, and ideally a “quick option” for when work is keeping me busy. As an example of what I’m looking for, I like ResistBot (https://resist.bot/) ‘s “BILLS” command for national issues.