Great product! My first use was with an AD600 Pro head photographing a new town council group. One head, large light source created a great soft even light for the group and room! Best lighting I've ever had for a large group like this!
I have several umbrellas and was looking for one which had a diffusion panel.This umbrella works exactly as described: it's a (very) large modifier that produces soft and even light. The quality of the materials is satisfactory too, with easy set-up and take-down. And last but not least - the shipping was quick, arrived within a few days (which was sooner than promised). If you're looking for a modifier that puts out gorgeous light, this is worth the investment; just keep in mind that it is very large and is best suited for indoor work.