As an ESL teacher, one of my tasks is to create lessons for my students. Scrivener plays a a big part in helping me to easily break may lesson projects down into smaller parts so that I can work off each section easily while still being able to look at the whole project where these parts are nested. This is really important when having to work on large projcts that cover a full sylabus of lessons.

The spell checker is an 8negral feature of the package

The product is very full-featured for writing projects. The corkboard view is particularly helpful for long-form.