This is a very cool project, but I'm not sure exactly what I would use it for. I could see it being useful if didn't start your project out using a tool for schema migrations and need to back reverse engineer things to create fake migrations.

I'm curious, does anyone here use it that would care to explain their use case?

We use it in our CI, just before deployment, to compare the DB structure of what's being tested with the DB structure of our staging or production environment.

It's a last minute check that prevented a lot of mistakes.

Wouldn't a dump and then diff of the schema into text form accomplish the same thing?