I've been using both hasura and postgraphile on my projects recently. The main reason is that I'm so fed up with building crud controllers for simple APIs. Both hasura and postgraphile do the job.

If I were to compare these projects: Hasura seems like a very well built and maintained project overall. With great documentation and easy to understand deployment process. I haven't hit any bottlenecks yet. I especially like the extensibility features such as webhooks. One major drawback for me is the language it is written in - haskell. Extending, patching, debugging will be hard in the future. I'm not even talking about hiring someone who knows haskell.

Postgraphile on the other hand is build on a more popular stack, but a less polished product in my opinion. Still does the job.

Also, for both hasura and postgraphile, I would like to see these projects support serverless deployments (aws lambda) out of the box. Is this something on your radar?