The Builderius team just released their developer update which includes major enhancements to Collections (Loops). Any HTML tag is supported, they removed the output of JSON on the front-end, there is a visual conditions builder that works inside loops, a new sub-collection element, and a recursive template element. There is a new free version and the pro update is available for download from you account page. The linked article has the details, along with a walk-through video.