My name is Fedde Souverein and I am the managing Director of Luminous Creative Imaging, where I (we) have been using the HDR Lightstudio software for a long time!
We work on a variety of creative projects (both stills and animations) and Lightstudio is nearly always used in our workflow as a main source of light or as an additional light source, depending on the project.
We mainly work with Maya (core) and Cinema4D (for animating) and always render with Redshift.