Easy to use, easy to manage, easy to modify. Markus at Crosstec.de has slammed this one out of the park! Joomla has needed a component like this for a long long long time! CCK, but at the rawest level. We have been able to do this with breezingforms, but it was complicated and cumbersome, not anymore with ContentBuilder. IMO, a great alternative to jreviews, zoo and k2, if you need just to display/search data views and not all the bells and whistles that the aforementioned components have (but some).
I will be using this one for a lot time!!