Gary Fong doesn't shoot pictures of dolls, pets, etc.
Go to Gary's website and look at his bridal party shot, where he mentions a high ceiling. Really "stare" at the lighting on the picture. Look at the bridesmaid to the left of the bride. Her shoulder is in shadow. Why? If it's a straight on shot, her shoulder should be lit! "Stare" at the folds of the dresses and the shadow of the flowers that the ladies are holding. Tell me, which way the lighting is coming from! There is a lot of internal lighting in that picture. Did the LS do that??
Your ceiling and surroundings will dictate the outcome of a picture. Sure your indoors pictures will come out, around the house! Put a Tupperware bowl over your flash and shoot the same picture! Vitually the same!
Go back to Gary's website and look at the little video he shows with the woman sitting down in the hallway of a hotel. What he DID NOT DO, was to take the same picture again, point the flash up at the ceiling and pull out the small reflector card which is built in, inside a lot of the newer flashes. (I have it on my SIGMA flash). You get the SAME exact result as the Light Thingy!