I have been using this plugin for a while, it works great, but I only recently noticed that it inserts a dashboard widget promoting the creator's blog. This also appears on the dashboard of subscribers.
This is not documented anywhere, certainly not in the repository notes, which is all that most people will read, and furthermore cannot be removed. This is sneaky, I don't like it. I am sure I can find another plugin with the same functionality but without this 'feature'.