I love doing set stills. The lights are set up, not by me; the make-up is done, not for me; the artists act, not for my lens. It's nice to be an observer on set. I have access to great light set-ups, great talent who's not bothered by my camera (there are other cameras they worry about) and at the end i don't have to clean anything. :)
But seriously, i've always enjoyed taking photos from a photojournalistic approach and that's what i m doing on sets. I feel comfortable and i love the results.