It has all common features that a form component should have, but also it calculates from fields, creates a pdf from form and it has conditional fields gives you flexibility. Also it can give you ability to preview form before submission.
Brilliant folks, absolutely brilliant.
Template override and creating new templates per categories are absolutely lights my my.
A Note To Developers : Multi image, Multi Category and Multi extrafiels would be great move for K2 in the future.
and if only you can create thumbs using crop and zoom for equal photos in category blog.