Excellent component. Easily the most flexible available for Joomla, miles ahead of any other.
Of course, no component is good without good support and Cobalt is exception here - the team at Mint Joomla are fantastic, with swift responses to questions, feature requests, etc
There is a learning curve with Cobalt because it is so big, there are so many uses for it - which is perfect because you can use one component for nearly every type of Joomla site.
Highly recommend this component and the developer!!!