lightning.js has a great interface which makes coding much easier and more intuitive than using the traditional way of coding. It's also very easy to use in any language as it supports multiple languages like JavaScript, Java, Python, PHP, etc. I have no complaints about this app so far. It seems that the developers are constantly improving it by adding new features. They are currently working on creating a CLI version of the software. This will surely make it even better. The fact that there is an easy and quick way to implement Lightning payments and transactions with customers. Also, the integration of this app with Zapier saves us time when doing other work.