Monitoring for changed files was a key reason I chose this plugin over other similar. However, I can never tell what was part of a normal WP Update. When I do the update, there is no immediate notice about changed files. I log in the next time, and there's the notice. I have to remember if the time stamp matches when I ran the update. If someone else runs the update, well that's more difficult to reconcile. This makes that feature of little practical use to me.