Simple to set up. Highly configurable. Remote storage seamlessly integrated. Outstanding support. Modern, well-documented code obviously written by an experienced professional dedicated to WordPress best practices.
Above and beyond for a free plugin. I cannot recommend it enough.
Heads-up: If you're using Google Drive for remote storage, there is a problem when using Google's new "Cloud Console" (see this thread) so use the [Return to original console] link in the lower right corner of the Cloud Console.