Sorry to get back to this so late. I had not much time to shoot lately and so finally got around to this.
Here are three images.
First one is taken with the speedlite 580EX ll with Gary Fong Light sphere (cloud) pointing up bouncing off ceiling.
Second shot is taken with the 580EX ll straight on with no diffuser.
Third shot was taken with the 580EX ll pointing up bouncing off ceiling and with the built in reflector up.
All shots were taken at 400 ISO, f2.8, 1/60 in Manual Mode
The Light Sphere really seems to do a great job in alot of different situations. Also, color caps can be purchased for adjusting or creating different tones and atmosphere.
A good investment for $40.00