You are right on all counts. As someone who evaluated and eventually recommended against implementing MongoDB for a new product, I entirely agree with you. The

You are right on all counts. As someone who evaluated and eventually recommended against implementing MongoDB for a new product, I entirely agree with you. The Mongo implementation was shot after about three months of wasted time after failure in pre-production testing. It was rolled back at great cost to SQL Server with a light document-style abstraction as Mongo failed miserably on precisely what you said: reliability, consistency, scalability and storage management. Proper relational databases (PostgreSQL, Oracle, SQL Server in my scope of experience) can take an absolute incredible amount of punishment without breaking any guarantees. The relational bit above is optional but it is at least something you can choose to use or not.