I've used it. There is a time when milliseconds count, and nothing else will help you get to that speed. I've taken some things that were running 30 seconds in

I've used it. There is a time when milliseconds count, and nothing else will help you get to that speed. I've taken some things that were running 30 seconds in app logic and reduced it down to 500ms. It's great for solving these little hot-spots. I also think the JSON processing is excellent. I think it is pretty simple to use, but I've also had to fix a lot of poorly-written PL/pgSQL. There is a LOT of nuances to the language that can blow your feet off, and the language doesn't really scale out to multiple people working on it. You just have to find one person who is good. You also need to have an editor with snippets because the language is very verbose. Personally, I'd rather use PL/pgSQL than any off-the-shelf ORM, but as I said, it wouldn't scale to more employees very well. The language solves one of the main use-cases of ORMs via the use of entities.