I love PostgREST and have deployed it several times alongside existing postgres databases to improve developers lives.

That being said, I think it's a little funny because it epitomizes APIs that I see people build where ACID compliance is a huge "must" for their database choice and then they expose resources which can only be independently updated in a manner that fails to expose ACID beyond the scope of individual resources. I think this is funny because it really makes you question if they ever actually needed full mutli-table transactions at all or if they could have used a different database all together.

Anyways, it's a really cool tool.