The results that you see are the same in both versions. Editor does not check basic spelling--it suggests you run your word processor's spellchecker before using it--but does check for improper use of words, misused hyphens, improperly used phrases, wordiness, missing or erroneous punctuation, and more. Not all of its suggestions are useful for every style of writing, and the folks at Editor stress that you should not act upon all of its suggestions. Instead, they suggest that you consider the changes that it suggests, and decide for yourself if they will help your writing. To that end, no changes are applied automatically: You must manually make any edits yourself.
I have to admit that I was pleasantly surprised at how well Editor analyzed my writing--once I got over the shock of seeing just how many errors it pointed out. I quickly realized that I could ignore many of its suggestions, and just how easy Editor makes it to identify those that actually do need attention. The program uses language like "grammatical error" to label errors that it definitely identifies, while in other cases it uses terms like "possible poor usage" or "possible redundant expression," to highlight situations where you might want to consider making a change.
Although I wish we lived in a world without a need for Programs like Editor, I have to admit--however grudgingly--that we don't. There are no perfect writers, but we all can get a little bit better with Editor.
Note: The Download button takes you to the vendor's site, where you can download the latest version of the software and find the trial password.