"It is unique in that it is in written mostly TeX and hence is a somewhat more elegant design than other converters. A small portion of it is written in Perl."
I have no conception of how any software written mostly in TeX with a little bit of Perl could have "elegant design" as a selling point.
For sufficiently simple documents you’re probably better of writing the master in a simple but structured format such as asciidoc[1] and then convert to whatever display format you like. However, if you do heavy math notation or other kinds of advanced formatting, I’m not sure this method will work that well.