I think it would be helpful to clarify a bit what this plugin does: In a normal Joomla! installation, you can view your module positions by typing ?tp=1 at the end of your address. (I didn't know it until I tested this module thinking it would be doing something else.) When this plugin is enabled, it prevents anyone seeing the module positions (including the admin, btw). Don't really know why you wouldn't want to use this, apart from hiding which CMS system you're using, which is fair enough. I give it "good" instead of "excellent" because although it works, I don't find it a very useful plugin.

Effective- It does what it claims. Such simple applications provide your site content and site design with added protection.