This plugin is great for my SMP survival server. My players love it. The developer has been great to fix any issues I have found.
One suggestion I have for him is to be more descriptive in his change logs as he's frequently updating the plugin it would be nice to know what changes were made.
The plugin has been working great so far. After I made a request, the author quickly released a new version. It's simple and easy to use for survival servers that need to restrict teleportation.