If it works for you - great.
Personally, I use VSCode for programming and as such it has syntax highlighting etc for writing documentation.
But, you can also do the following...
- Write code & auto format it into beautiful layout
- Get code completion on CSS and JS (i.e. can help you with spelling of attributes, property names and values, etc)
- Can show you your errors in JSON
- Can do things like multiple cursor for editing 2, 10, 1000 lines at once (huge time saver when you learn how to use it)
- Can validate your HTML (like when you forget to put a closing tag)
- Has many add-on for things like spelling in your code, themes for the whole experience and sooo much more.
The last benefit would be, if ever decide to develop you own node-red node, you would already be familiar with the editor.