Does the job nicely

This plugin is very efficient for the task it was made for : cloning a site in a network. This touchy action, that involves lots of underlying potential issues and is not as simple as you might think, is now just one or two clicks away.

The code itself is also well written and does not reinvent the wheel by using other open source code to parse the database and replace the URLs properly.

I would vote to integrate this feature into core !