Back in 2012, there was a new way to build web apps fast and packed full of features. It was MEAN. MongoDB, Express, Angular, and Node. I built a number of apps with this technology, and it worked. However, as time passed they began to show their weaknesses. Today we’ll look at a few lessons learned from MongoDB. What MongoDB Kicks Butt At Most technologies cannot be just dismissed outright, even though you read article after article telling you “Why you should not X”.