Mike
This thing is NICE! Of course, the pro doesnt necessarily need it, but it can still be of service to a pro. Especially in tricky rooms where you want to be quick. Saves time and weight too cause you dont need the bracket. Now it is a robot, so sometimes it doesnt get it quite right, especially bouncing off dark colored surfaces, but most times its spot on. I will say its not so much for artistic photos where you might WANT shadows, or simply want more control, but a great tool for beginners or those who just want nicely flashed photos without hassle. Works well in manual mode too, performs like a 430. Sadly, cannot be used as a master. The hardest thing youll go thru is getting people to look at the lens instead of the cool head on your camera moving by itself...