Basic features only, full of ads

This plugin offers just the most basic features to add a client-side code snippet. If you need some PHP code in it, you need another plugin. It offers no code editor (just a plain text box) and no support for automated HTML tag insertion or WYSIWYG editing.

Moreover, the plugin’s pages are full of ads to the premium version and other plugins and it adds error-style (i.e. red stripe), colorful notification across all the back-end, appealing to “Rate it 5★’s on wordpress” (sic), “Enable Backlink”, “Share on”, or “Donate”. (Well, there is an option to “Don’t Show This Again”, too.)

After trying this plugin (and its PHP counterpart) for a while, I found another plugin that does not suffer from any of the above problems.