This module is one of my favorites in joomla, especially because I always use K2 for managing articles and there are just afew extensions to show the articles in a tidy and stylish way.
I used a tons of this module around my last project.
Really thanks to DEVELOPERS.
And I have a suggestion to add crop option for creating thumbnails instead of resizing anyway!
It's a fantastic extension, and must be installed on every Joolma! powered websites, specially for right-to-left language ones(like all of mine).It lets you send beautiful emails to the users and also you can use your own logo on the top of emails very easily!
Many Thanks to Developers!