Indeed this software is really good, and I regret that it is so expansive, because it deserves being used by more people. Using it, you can write, but primarily you can do good science, i.e. calculus, equations. I love it, and it is almost the only software that I am using. Immediately when my computer is on, a Maple file is opened (my "notebook"). Right now, answering the questions, I am looking on the left of the screen and I can see that I am also using (sometimes) Unison (for backups), LibreOffice Writer, GIMPAvogadro..