WordPress Drag and Drop Builder

I am looking for a layout builder for WordPress. I recently downloaded a theme which did not have a page builder included and I am looking for one which includes one. I have seen alternative solutions, but they were lacking basic functionality.

This is the kind of page builder option I am looking for - http://tinyurl.com/cpkdbsm

I have some other solutions were aren’t as advanced, I understand most of those page builder were done with custom coding, particurly for themes, but I honestly have to find something. The ones I found are the following:

http://codecanyon.net/item/ether-content-builder-wordpress-plugin/full_screen_preview/1690784
http://wpeden.com/minimax-wordpress-page-layout-builder-plugin/

I was wondering if somebody can guide me on a good page builder they have experience with.