I really like this plugin. It does exactly what it needs to.
It helps provide valuable related content for users when viewing a post, and that's huge in reducing bounce rates for those posts that receive a lot of organic traffic. It gives users another level of interest when they scroll to the bottom of the post and see related items.
I may suggest showing all the plugin's settings without having to go into 'screen options'. I very rarely look there to find more settings for a plugin, so its a bit of a hidden door if you know what I mean.