I only get lost on their website....there are so many extensions, packages, plugins, demos and sometimes this can be very confusing.
For instance, I have bought Ari Smart Content package which contains Ari Magnifier, Ari Zoom and a lot more.
Later on I found out that only the single Ari Magnifier extension contains ARI Magnifier Anywhere plugin (which I needed to magnify K2 image).
The Smart Content package does not contain this plugin, so I had to buy seperately Ari Magnify extension.
These differences should be made more clear to my opinion.
It is based on K2 extra fields. Be aware of the fact that in K2 the values of an extra field cannot be ordered! This requires K2 core code modification and it is not recommended and may
cause a problem with already saved extrafield values. The values in the dropdownbox of this extension are ordered the way they are added to the K2 extrafield.
Andrey helped me to make it possible to anyway show the values in the dropdownbox in alphabetical order. Really great and fast support! I recommend this extension to anyone who needs to filter K2's content.
This plugin makes it possible an email is sent to one or more emailaddresses after a comment is placed. Just what I needed! I had a conflict issue with the plugin and contacted the developer. He solved it right away and that's why I give this plugin a 5-star rating. Well recommended!