I love this tool and even wrote my PhD thesis with it. I find that there is a somewhat large boiler plate component when writing with LaTeX, but with TeXmacs, writing maths just feels easy. It’s easy to set up, and easy to use.
Nowadays I find myself using the Mogan fork as I find it’s a little more stable.
But again, awesome project and would highly recommend people to use, not just as a math writing tool, but simply also as a word processor