I decided to write up a blog post about the flaws and positive points of K2.

You can view it here.

www.joomlatemplatestyle.com/blog/5-joomla-components/41-k2-cck-for-joomla-15.html

wow need to resize your site it bleed like crazy on right side.
Point K2 is supported by may components and modules already.
I use ijoomla SEO a 99 buck component and K2 was added as soon as version 1.0 came available.
Also I am sure others coders are working on other good modules/plugins/component.

I find even myself easy to find flaw on any apps As I am not a developer I look at the positive and over look the negative if it those what I want and K2 so more than I can expect and it FREE