No. Activate it and three things start on their own: renaming a published page or a category keeps its old address working, changing your permalink structure keeps the old post, category and product addresses working, and every address people ask for and do not find is written down for you.
Add a redirect by hand when you remove a page, or when you find one on Broken links worth fixing.
Still stuck? Ask the developers who wrote it. We aim to reply within one business day.
