Yes - I am exploring the trial to see if it's the tool for me. In "collections" I would like to assemble photos for a live presentation, and have the ability to reorder images quickly.
If I am asked to show another file in my library, not in the collection I have readied - it would be a breeze to pop out of "collections" to "search" and find it. But I would like to rearrange thumbnails like in Lightroom or as you could in Aperture.