This extension lets us assign only specific extra field groups to different categories which helps with client sites. It gives the end user a simpler interface to work with when adding K2 items.
Right now the extension works and works well, you do have to turn the Joomla error reporting to none or warnings will appear. Hopefully the author will get these details fixed.
We like this extension and excited to see how it will improve over time.
I wish there was a way to do disable this or at least let people know that the link was there.
I also felt like the extension directory used to let people know if the developer included a link back to their site.
K2 Multiple images solved the challenges for my setup. I had a few questions and Andrey answered them right away.
I was even an early upgrader to a new version of K2 for Joomla 3.0. the muliple images plugin needed a change and Andrey had a working version to me in 1 hour of my support request.
I build Joomla sites professionally and can say this extension and the support is some of the best I have come across. Hope this helps!