MongoDB with it's JSON model helped us develop features and iterate much faster than the previous MySQL/PG. So it was a huge win for use (but we had some pain w

MongoDB with it's JSON model helped us develop features and iterate much faster than the previous MySQL/PG. So it was a huge win for use (but we had some pain with some issues). Today we use PG everywhere with JSON, though still the library support for JSON in Mongo is often a little bit better than in PG drivers.