The one feature Id want to see in the document (word/docx) editor is TextReflow/WebView/SingleColumn mode, as the documents I use are mostly text rather than layout -- Previous aside, I like the app as it allows for offline work AND does NOT force signing up to use; it also is pretty lightweight and fast; and I like it asks a lot (I prefer being able to decide if I want to save or not, rather than overwriting automatically)
Rhzyak about Polaris Office - PDF & Docs, v7.3.22