Rating: 5 stars

Feel free to add your own content, whatever type of content that will be. The voting only allows you to vote once, even if you switch to another browser. Awesome plugin.

Rating: 4 stars

Works as advertised. No setup is required, and shortcodes are easy to use.

The only drawback I can see is that the plugin creates a separate table to store its data. There is a cleanup script on uninstall hook, so plugin should not leave anything behind, if uninstalled correctly.