Since K2 appeared, i have used in many of my clients websites and websites from my own. With V 2.2 a big change was made and now it's so flexible that you can use K2 for almost any kind of website. The CSS in the template folder its now another way to customize more the look and feel of the component without loosing its source files.
The support from the developers its also great (considering its a FREE and Open Source component) and the community behind is creating new plugins each day.
Im really glad that someone comitted to create such a wonderfull extension for the Joomla Community.
Thanks a lot guys!