This works right out of the box, really. There are options to customize it, but those really are optional. After playing with the non-commercial version for 20 minutes, I was happy to pay for the pro version. Setup there is a little more involved, but it's not that bad. Yes, there are changes to the .htaccess file, but they are straightforward.
The ability to track broken links has been quite useful. The major project we're working on right now involves cutting over to a new site from an old one, so knowing what is missing - and being able to redirect them to the correct page - has been great.
Well worth the cost!