The flash itself is very good, light and strong enough as others have said, with fast loading times. There are two small hardware problems. First, the red-eye effect is very noticeable due to the size of the flash. I highly recommend a flash mount to set it off the camera body and off the lens axis, or just use it in reflection. Second, the flash exposure wheel is too easy to touch and change unintentionally. On a busy day of shooting, it's annoying to have to constantly check the dial to make…