After its last update, this plugin stopped working.
The comments area disappeared. It kept showing a pink background message "Param numposts must be a number less than or equal to 100"
So, I went to its settings and in the "Comments plugin" tab set the number of post to 100 (it was in 1000, before). It did not solve the issue: The message disappeared, but the comments area was not back.
I set, then the number of posts in less than 100. Same issue.
Since on our site there are more than 100 posts, I am starting to suspect this not paid version of the plugin has a limit of post to be used. After it, it just disappears from the site. IF THIS IS SO, it is stated NOWHERE.
I tried to go to the support forum, but there is no help there unless you pay. Since I don't know whether the problem will be fixed (you can read other reviews of people who paid and didn't get a straight answer), I don't feel like paying.
So, basically, do not add this plugin to your site unless you don't mind paying for support you don't know it's going to work.