This is really what I meant. They must offer more than a copy of postgres running on a computer. How do they scale? What are the features? Why would I choose this over RDS for example?

Scaling postgres is not that informative. I am sorry if I annoyed the people working on it. I think the USP could be explained more obviously.

It's a reasonable question. I think it's too early days for us to be able to provide a feature-by-feature breakdown of PlanetScale Postgres vs. Aurora/RDS. Our stated mission on day 1 (today) is to be the fastest and most reliable Postgres provider out there. The benchmarks we've provided are the clearest, data-driven thing we can point to right now in support of that.

More features will come later on which I think will set us apart even more from RDS, Aurora and other providers, but too early to talk about those.

Beyond features, there are other reasons you might choose us. For example, we've built a reputation on being having excellent reliability/uptime, with exceptionally good support. These are harder to back up with hard data, but our customer testimonials are a good testament to this.