Bottom line: Good middle-of-the-range option
Review: RightWriter analyzes your documents and make suggestions to help you improve the grammar and readability. RightWriter often provides sage advice. But, unlike other editing software, RightWriter provides advice only; it does not suggest specific alternatives that you can accept or reject at a click of the mouse.
In this respect, RightWriter is a lot like Editor. But, unlike Editor, RightWriter does not seem to provide an "Ignore All" function, which means RightWriter often repeats the same advice. And while Editor, like RightWriter, does not integrate with Word or other word processing applications, Editor does let you import documents rather than relying on the "copy and paste" function. Editor also seems to process text faster; we used RightWriter on a 100-page document that took several minutes to process. Both programs acknowledge this limitation and suggest you process documents in smaller chunks. With RightWriter, there were some formatting problems when we copied formatted text into the RightWriter window.
Despite these limitations, there is something quite charming about RightWriter. Perhaps it's the old-fashioned Courier New "typewriter" typeface or the way RightWriter reminded us of our old High School Grammar teacher correcting our school essays:

Another big difference between RightWriter and, say, Grammar Expert Plus, is the price. The modest investment of $29.95 pushes RightWriter from the "Good" category into the "Very Good" category.