I got it; wow, is it thorough. Since I use Windows, I was excited to see that there was a beta version of 3.0 for Windows--from, it turns out, 2017. I did not snag a copy to try.
I know I don't use that many features: I like shoving around the little cards on the corkboard for building my plots, and I've got the notes for the world-building. And occasionally I've outlined a scene or written part of it. Maybe if I had a bigger screen or a more potent computer (I like netbooks, which are light to carry), I'd use it for the actual writing, but since I prefer to write in plain text (old habit) and make the ebooks by hand (another old habit), maybe not.
I pointed out on the survey how much I appreciate that files are saved in .txt or .rtf, which I can use in just about any program and which I'll be able to read 30 years from now.