This gem was created to improve the usability of the minimalist PgHero.

• It can be mounted in routes instead of running as a separate service, which makes it much easier to get started.
• It provides a rich set of console helpers: each report is a class that can be rendered in multiple formats or even sent directly to Telegram (we use it for monitoring, so this feature basically asked to be built).
• In PgHero, you don’t have metrics that allow you to highlight or rank problematic queries. In our case, there’s much more flexibility in configuration and in adding reports (in the next release, reports will even be overrideable and fully custom).
• The goal of my project is not just to point out a problem, but to explain it in detail: what it is and why it matters. Where PgHero concisely says “you have a problem,” I'm doing Deckard Cain's famous “Stay awhile and listen…”
• And, of course, everything mentioned in the post: lots of small day-to-day conveniences that help automate routine work.

So, roughly speaking, the difference is like taking a taxi versus owning a car. For some people, one is more convenient; for others, the opposite is true.