Too Long; Didn't Read
Using AWS Lambda is pretty much the same as using a tiny Node.js runtime. It just abstracts away everything except for the code. The setup itself will be bare bones minimum. But, it will still have everything you need to continue adding features for your future production apps. It's like serverless but for running entire back ends. You can host and scale apps automagically. Pretty neat. Using Lambda, you can use MongoDB without batting an eye! It’s a simple tool to make development and deployment incredibly easy.